CALCULUS WITHOUT CALCULUS
Live / Allowed — Published for opposition (as of 10 Feb 2026)
What this means for you
Approved and waiting on proof of use. It will register unless the applicant drops it, and its 25 Aug 2025 filing date already counts against anyone who files later.
Record
- Serial number
- 99355363
- Mark type
- Stylized text
- Filed
- 25 Aug 2025
- Published for opposition
- 10 Feb 2026
- Attorney of record
- Trevor A. Caudle, Esq.
Goods and services
- Class 009 — Scientific and electric apparatus: Series of downloadable non-fiction books in the field of mathematics; Computer game software downloadable from a global computer network; Downloadable computer game software; Downloadable computer graphics software
- Class 016 — Paper goods and printed matter: Series of printed fiction and non-fiction books on a variety of topics
- Class 042 — Scientific and technological services: Providing temporary use of non-downloadable game software via a website; Providing temporary use of online non-downloadable video game programs
Owner
- Rajalakshmi Kollengode, Sunnyvale, CA, US
- Rajalakshmi Kollengode, Sunnyvale, CA, US
- Wyndia Ohm, Sunnyvale, CA, US
- Wyndia Ohm, Sunnyvale, CA, US
- Narayanan Raju, Sunnyvale, CA, US
- Narayanan Raju, Sunnyvale, CA, US
Prosecution history
- 10 Feb 2026 — OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
- 10 Feb 2026 — PUBLISHED FOR OPPOSITION
- 04 Feb 2026 — NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
- 14 Jan 2026 — APPROVED FOR PUB - PRINCIPAL REGISTER
- 08 Jan 2026 — ASSIGNED TO EXAMINER
- 25 Aug 2025 — APPLICATION FILING RECEIPT MAILED
- 25 Aug 2025 — NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
- 25 Aug 2025 — NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
- 25 Aug 2025 — NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
- 25 Aug 2025 — NEW APPLICATION ENTERED