CHECKSUM
Live / Registered — Registered (as of 18 Nov 2025)
What this means for you
Registered since 18 Nov 2025. The owner can stop confusingly similar uses in the classes it covers.
Record
- Serial number
- 98603889
- Registration number
- 8027222
- Mark type
- Stylized text
- Filed
- 17 Jun 2024
- Published for opposition
- 30 Sept 2025
- Registered
- 18 Nov 2025
- Attorney of record
- CAITLIN R. BYCZKO
Goods and services
- Class 009 — Scientific and electric apparatus: downloadable computer software for code testing; downloadable computer software for code testing, namely for code correction, code auto-healing, code quality and robustness and technical debt reduction
- Class 042 — Scientific and technological services: software as a service (SAAS) featuring software for code testing; software as a service (SAAS) featuring software for code testing, namely for code correction, code autohealing, code quality and robustness and technical debt reduction
Owner
- Checksum AI, Inc., San Francisco, CA, US
- Checksum AI, Inc., San Francisco, CA, US
- Checksum AI, Inc., San Francisco, CA, US
Prosecution history
- 18 Nov 2025 — NOTICE OF REGISTRATION CONFIRMATION EMAILED
- 18 Nov 2025 — REGISTERED-PRINCIPAL REGISTER
- 30 Sept 2025 — OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
- 30 Sept 2025 — PUBLISHED FOR OPPOSITION
- 24 Sept 2025 — NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
- 29 Aug 2025 — EXPARTE APPEAL TERMINATED
- 29 Aug 2025 — APPROVED FOR PUB - PRINCIPAL REGISTER
- 03 Jul 2025 — EX PARTE APPEAL-INSTITUTED
- 03 Jul 2025 — JURISDICTION RESTORED TO EXAMINING ATTORNEY
- 03 Jul 2025 — EXPARTE APPEAL RECEIVED AT TTAB
- 03 Jul 2025 — TEAS/EMAIL CORRESPONDENCE ENTERED
- 03 Jul 2025 — CORRESPONDENCE RECEIVED IN LAW OFFICE
- 03 Jul 2025 — TEAS REQUEST FOR RECONSIDERATION RECEIVED
- 12 Apr 2025 — NOTIFICATION OF FINAL REFUSAL EMAILED
- 12 Apr 2025 — FINAL REFUSAL E-MAILED