Where is the live CopyMark page for USPTO serial 99507948?

The live record is at https://getcopymark.com/trademark/99507948. Use https://getcopymark.com/trademark/{serialNumber} for any 8-digit USPTO serial.

Who owns DEEP FISSION?

According to the public USPTO record for serial number 99507948, the listed owner(s) include: Deep Fission, Inc..

What is USPTO serial number 99507948?

Serial number 99507948 is the USPTO application identifier for the mark DEEP FISSION. It is used to track examination, publication, and registration of this trademark.

Which trademark classes cover DEEP FISSION?

The public record lists International Classes: 011, 016, 037, 040, 041, 042. Each class corresponds to categories of goods or services identified in the application or registration.

Trademark: DEEP FISSION Serial# 99507948 | status 653; last event GNS3 | Trademark Info & Attorney Guidance

Q: What is the current status of DEEP FISSION?

DEEP FISSION (99507948) currently shows USPTO status code 653 on the public record. This page summarizes the public USPTO record for this serial number, including owners, goods and services, and prosecution history.

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

Deep Fission, Inc.
Berkeley, CA, US
Other trademarks owned by Deep Fission, Inc.

Attorney of record

The USPTO lists this attorney as the applicant's representative for correspondence on this application.

Robert G. Woolston

Robert G. Woolston Perkins Coie LLPP.O. Box 2608Seattle, WA 98111United States

Goods and services

Class	Description	Status	First use
011	Small modular nuclear reactors; Nuclear reactors and structural parts therefor	ACTIVE	—
016	Printed publications, namely, text books and scientific journals in the fields of nuclear power systems and nuclear energy production	ACTIVE	—
037	Installation, repair and maintenance of nuclear reactors; Installation, repair and maintenance of machinery for generating electricity; Consulting services in the field of repair and maintenance of nuclear reactors	ACTIVE	—
040	Electricity generation; Nuclear fuel recycling; Nuclear fuel reprocessing; Nuclear waste treatment; Consulting services in the field of nuclear energy production	ACTIVE	—
041	Training in the use and operation of nuclear power systems	ACTIVE	—
042	Nuclear engineering services; Scientific research in the field of nuclear energy; Software as a service (SaaS) featuring software for providing information in the field of nuclear energy production, providing training in the field of nuclear energy production, providing regulatory information in the field of nuclear energy; Providing temporary use of online non-downloadable chatbot software for providing information and resources in the field of subsurface nuclear energy	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
Jul 6, 2026	GNS3	NOTIFICATION OF LETTER OF SUSPENSION E-MAILED	—
Jul 6, 2026	GNSL	LETTER OF SUSPENSION E-MAILED	—
Jul 6, 2026	CNSL	SUSPENSION LETTER WRITTEN	—
Jun 16, 2026	TEME	TEAS/EMAIL CORRESPONDENCE ENTERED	—
Jun 15, 2026	CRFA	CORRESPONDENCE RECEIVED IN LAW OFFICE	—
Jun 15, 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.
Mar 18, 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.
Mar 18, 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.
Mar 18, 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.
Mar 16, 2026	DOCK	ASSIGNED TO EXAMINER	—
Nov 20, 2025	MAFR	APPLICATION FILING RECEIPT MAILED	—
Nov 20, 2025	NWOS	NEW APPLICATION OFFICE SUPPLIED DATA ENTERED	—
Nov 20, 2025	NWAP	NEW APPLICATION ENTERED	—

DEEP FISSION