USPTO serial 97900529
PROLOGUE
Reviewed by CopyMark Law Group
- Filing date
- Status date
- Registration date
- Sep 1, 2026
- Examiner
- DUFFIN, GRACE M
- Law office
- PUBLICATION AND ISSUE SECTION
What this means
Status 700 means the trademark is registered and active on the Principal Register. You have nationwide rights for the listed goods and services and may use ®. Section 8 maintenance is due between years five and six. Calendar Section 8 between years five and six, and consider trademark monitoring.
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Current trademark owner
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Not the owner?
File a new U.S. trademark application, or speak with our attorneys.
Owner
Cambridge, MA, US
CAMBRIDGE, MA, US
CAMBRIDGE, MA, US
CAMBRIDGE, MA, US
Goods and services
| Class | Description | Status | First use |
|---|---|---|---|
| 005 | Pharmaceutical preparations for the treatment of cancer, cardiovascular diseases and disorders, respiratory diseases and disorders, gastrointestinal diseases and disorders, immunological diseases and disorders, metabolic diseases and disorders, endocrine diseases and disorders, kidney diseases and disorders, dermatological diseases and disorders, reproductive diseases and disorders, urological diseases and disorders, allergies, bone diseases and disorders, diseases and disorders of the musculo skeletal and genitourinary systems, and viruses and infectious diseases | ACTIVE | Mar 9, 2026 |
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.
- Other trademarks owned by Flagship Labs 89, Inc.
- Other trademarks owned by PROLOGUE MEDICINES, INC.
- Other trademarks owned by PROLOGUE MEDICINES, INC.
- Other trademarks owned by PROLOGUE MEDICINES, INC.
- Other trademarks in Class 005
- Similar marks named PROLOGUE
- Recently changed USPTO trademarks
- Recently filed trademarks
- Browse all trademark records
Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Sep 1, 2026 | NRCC | NOTICE OF REGISTRATION CONFIRMATION EMAILED | — |
| Sep 1, 2026 | R.PR | REGISTERED-PRINCIPAL REGISTER | Your trademark is registered on the Principal Register — the strongest form of federal trademark protection. You may use the ® symbol for the covered goods and services. Maintenance filings (Section 8 and renewals) are required to keep the registration alive. |
| Aug 12, 2026 | SUNA | NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED | — |
| Aug 12, 2026 | CNPR | ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED | — |
| Jun 23, 2026 | SUPC | STATEMENT OF USE PROCESSING COMPLETE | — |
| Mar 23, 2026 | IUAF | USE AMENDMENT FILED | — |
| Mar 23, 2026 | EISU | TEAS STATEMENT OF USE RECEIVED | The applicant filed a Statement of Use with specimens showing the mark in actual commerce. The USPTO will review the filing for compliance. If accepted, the mark can proceed to registration; if deficient, the USPTO may issue a requirement or office action. |
| Feb 20, 2026 | EXRA | NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED | — |
| Feb 20, 2026 | EX3G | SOU EXTENSION 3 GRANTED | — |
| Feb 20, 2026 | EXT3 | SOU EXTENSION 3 FILED | — |
| Feb 20, 2026 | EEXT | SOU TEAS EXTENSION RECEIVED | The applicant requested more time to file a Statement of Use before the Notice of Allowance deadline. Each extension typically adds six months. A limited number of extensions are available for intent-to-use applications not yet in use. |
| Aug 16, 2025 | EXRA | NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED | — |
| Aug 15, 2025 | EX2G | SOU EXTENSION 2 GRANTED | — |
| Aug 15, 2025 | EXT2 | SOU EXTENSION 2 FILED | — |
| Aug 15, 2025 | EEXT | SOU TEAS EXTENSION RECEIVED | The applicant requested more time to file a Statement of Use before the Notice of Allowance deadline. Each extension typically adds six months. A limited number of extensions are available for intent-to-use applications not yet in use. |
| Feb 13, 2025 | EXRA | NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED | — |
| Feb 13, 2025 | EX1G | SOU EXTENSION 1 GRANTED | — |
| Feb 13, 2025 | EXT1 | SOU EXTENSION 1 FILED | — |
| Feb 13, 2025 | EEXT | SOU TEAS EXTENSION RECEIVED | The applicant requested more time to file a Statement of Use before the Notice of Allowance deadline. Each extension typically adds six months. A limited number of extensions are available for intent-to-use applications not yet in use. |
| Aug 20, 2024 | NOAM | NOA E-MAILED - SOU REQUIRED FROM APPLICANT | A Notice of Allowance means your intent-to-use application cleared examination and opposition but is not registered yet. You must file a Statement of Use showing the mark in commerce, or request an extension, before the deadline — usually six months from the notice date. |
| Jun 25, 2024 | NPUB | OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED | — |
| Jun 25, 2024 | PUBO | PUBLISHED FOR OPPOSITION | Your mark was published in the USPTO Official Gazette for a 30-day opposition window. During that period, third parties who believe they would be harmed can file an opposition. If no opposition is filed, prosecution usually continues toward registration or a Notice of Allowance. |
| Jun 5, 2024 | NONP | NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED | — |
| May 17, 2024 | CNSA | APPROVED FOR PUB - PRINCIPAL REGISTER | — |
| Apr 23, 2024 | TEME | TEAS/EMAIL CORRESPONDENCE ENTERED | — |
| Apr 22, 2024 | CRFA | CORRESPONDENCE RECEIVED IN LAW OFFICE | — |
| Apr 22, 2024 | 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. |
| Jan 20, 2024 | 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. |
| Jan 20, 2024 | 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. |
| Jan 20, 2024 | 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. |
| Jan 19, 2024 | DOCK | ASSIGNED TO EXAMINER | — |
| Dec 6, 2023 | ASGN | AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP | — |
| May 17, 2023 | NWOS | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED | — |
| Apr 25, 2023 | NWAP | NEW APPLICATION ENTERED | — |