USPTO serial 99424374
BASE CHAIN
Reviewed by CopyMark Law Group
Status 661
- Filing date
- Status date
- Registration date
- —
- Examiner
- MCPHERSON RAYBURN, SHAVELL A
- Law office
- TMEG LAW OFFICE 106
What this means
This page summarizes the public USPTO record for this serial number, including owners, goods and services, and prosecution history.
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Owner
Oakland, CA, US
Attorney of record
The USPTO lists this attorney as the applicant's representative for correspondence on this application.
Kelu Sullivan
Kelu Sullivan Kelly IP, LLP1300 19th Street, NW, Suite 420Washington, DC 20036United StatesGoods and services
| Class | Description | Status | First use |
|---|---|---|---|
| 009 | Downloadable computer and mobile application software for accessing blockchain-based platforms; downloadable computer and mobile application for distributed software applications for accessing blockchain-based platforms; downloadable mobile computing platforms, protocols and decentralized applications (dApps) consisting of blockchain-based platforms for developing and building distributed software applications; downloadable computer and mobile applications software for developing and building distributed software applications, distributed computing platforms, blockchain protocols, and decentralized applications (dApps); downloadable and recorded computer software for encryption; downloadable and recorded computer software for blockchain development and implementation, execution and management of secure data transactions, management of data escrow, and provisioning of shared and distributed ledgers; downloadable and recorded computer software for representation of data involved in and described in data transactions; downloadable and recorded computer software platforms for blockchains development and implementation; downloadable and recorded software for development, testing, and integration of blockchain software applications to shared and/or distributed ledgers | ACTIVE | — |
| 035 | Business consulting services in the field of decentralized applications (dApps), and decentralized autonomous organizations, and blockchain protocols; business consulting services in the field of metaverse and web 3.0 consulting services | ACTIVE | — |
| 042 | Providing on-line non-downloadable software for managing smart contracts using blockchain-based platforms; providing temporary use of non-downloadable web-based decentralized applications (dApps) for collecting, verifying, and transmitting data and information for use in blockchain-based smart contracts; providing on-line non-downloadable software for developing and building distributed software applications, distributed computing platforms, blockchain protocols, and decentralized applications (dApps); research and software development of computer software services; computer software development and implementation of software for blockchain-based platforms; design, development and implementation of software in the field of blockchains; software development and product development consulting in the field of distributed computing platforms; software development and product development consulting in the field of blockchains; hosting an online community website featuring shared communications between community members interested in blockchain protocols, decentralized applications (dApps); providing on-line non-downloadable computer software for encryption; providing on-line non-downloadable computer software for blockchain development and implementation, execution and management of secure data transactions, management of data escrow, and provisioning of shared and distributed ledgers; providing on-line non-downloadable computer software for representation of data involved in and described in data transactions; providing on-line non-downloadable software for development, testing, and integration of blockchain software applications to shared and/or distributed ledgers; Software as a service (SAAS) services featuring software for providing a layer 2 blockchain infrastructure; Software as a service (SAAS) services featuring software for providing a secondary protocol or framework built on top of an existing blockchain network; Platform as a service (PAAS) featuring computer software platforms for providing a layer 2 blockchain infrastructure; Platform as a service (PAAS) featuring computer software platforms for providing a secondary protocol or framework built on top of an existing blockchain network; providing online non-downloadable software development tools for creating blockchain-based applications provided by a blockchain as a service (baas) provider | ACTIVE | — |
Related trademarks
CopyMark links this record to cited §2(d) serials, the owner's other marks, Nice classes, similar mark names, and recently changed USPTO applications.
Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Oct 22, 2026 | TEME | TEAS/EMAIL CORRESPONDENCE ENTERED | — |
| Oct 22, 2026 | CRFA | CORRESPONDENCE RECEIVED IN LAW OFFICE | — |
| Oct 22, 2026 | TROA | TEAS RESPONSE TO OFFICE ACTION RECEIVED | This event means the applicant filed a response to a USPTO Office Action — typically arguments, amendments, or evidence addressing the examiner's objections. The USPTO will review the response and either allow the mark to proceed or issue another action. |
| Oct 19, 2026 | GNRN | NOTIFICATION OF NON-FINAL ACTION E-MAILED | A non-final Office Action means the USPTO examining attorney has raised at least one issue with your trademark application but has not made a final decision. You usually have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application. |
| Oct 19, 2026 | GNRT | NON-FINAL ACTION E-MAILED | A non-final Office Action means the USPTO examining attorney has raised at least one issue with your trademark application but has not made a final decision. You usually have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application. |
| Oct 19, 2026 | CNRT | NON-FINAL ACTION WRITTEN | A non-final Office Action means the USPTO examining attorney has raised at least one issue with your trademark application but has not made a final decision. You usually have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application. |
| Oct 19, 2026 | ZZZX | PREVIOUS ALLOWANCE COUNT WITHDRAWN | — |
| Oct 13, 2026 | PBCR | WITHDRAWN FROM PUB - OG REVIEW QUERY | — |
| Sep 22, 2026 | CNSA | APPROVED FOR PUB - PRINCIPAL REGISTER | — |
| Sep 1, 2026 | TEME | TEAS/EMAIL CORRESPONDENCE ENTERED | — |
| Sep 1, 2026 | CRFA | CORRESPONDENCE RECEIVED IN LAW OFFICE | — |
| Sep 1, 2026 | ERFR | TEAS REQUEST FOR RECONSIDERATION RECEIVED | — |
| Jul 17, 2026 | GNFN | NOTIFICATION OF FINAL REFUSAL EMAILED | — |
| Jul 17, 2026 | GNFR | FINAL REFUSAL E-MAILED | A final Office Action (final refusal) means the examining attorney is maintaining at least one refusal and your options are narrower. You can file a response addressing the refusal, appeal to the Trademark Trial and Appeal Board, or let the application abandon. |
| Jul 17, 2026 | CNFR | FINAL REFUSAL WRITTEN | A final Office Action (final refusal) means the examining attorney is maintaining at least one refusal and your options are narrower. You can file a response addressing the refusal, appeal to the Trademark Trial and Appeal Board, or let the application abandon. |
| Apr 24, 2026 | TEME | TEAS/EMAIL CORRESPONDENCE ENTERED | — |
| Apr 24, 2026 | CRFA | CORRESPONDENCE RECEIVED IN LAW OFFICE | — |
| Apr 24, 2026 | TROA | TEAS RESPONSE TO OFFICE ACTION RECEIVED | This event means the applicant filed a response to a USPTO Office Action — typically arguments, amendments, or evidence addressing the examiner's objections. The USPTO will review the response and either allow the mark to proceed or issue another action. |
| Feb 28, 2026 | GNRN | NOTIFICATION OF NON-FINAL ACTION E-MAILED | A non-final Office Action means the USPTO examining attorney has raised at least one issue with your trademark application but has not made a final decision. You usually have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application. |
| Feb 28, 2026 | GNRT | NON-FINAL ACTION E-MAILED | A non-final Office Action means the USPTO examining attorney has raised at least one issue with your trademark application but has not made a final decision. You usually have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application. |
| Feb 28, 2026 | CNRT | NON-FINAL ACTION WRITTEN | A non-final Office Action means the USPTO examining attorney has raised at least one issue with your trademark application but has not made a final decision. You usually have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application. |
| Feb 21, 2026 | DOCK | ASSIGNED TO EXAMINER | — |
| Feb 20, 2026 | NWOS | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED | — |
| Oct 1, 2025 | MAFR | APPLICATION FILING RECEIPT MAILED | — |
| Oct 1, 2025 | NWAP | NEW APPLICATION ENTERED | — |