TKOS
Live / Registered — Registered — Section 71 accepted (as of 17 Feb 2026)
What this means for you
Registered since 08 Oct 2019. The owner can stop confusingly similar uses in the classes it covers; it stays on the register as long as the owner keeps up the maintenance filings (next due by 08 Oct 2029: the §71 ten-year affidavit of use).
Record
- Serial number
- 79260447
- Registration number
- 5876977
- Mark type
- Word mark
- Filed
- 15 Jan 2019
- Published for opposition
- 23 Jul 2019
- Registered
- 08 Oct 2019
- Next maintenance filing
- §71 ten-year affidavit of use, due by 08 Oct 2029 (grace period to 08 Apr 2030)
- Attorney of record
- Roy D. Gross
Goods and services
- Class 042 — Scientific and technological services: Open source software development and consulting
Owner
- TK OPEN SYSTEMS LTD., Jerusalem, IL
- TK OPEN SYSTEMS LTD., IL
- TK OPEN SYSTEMS LTD., IL
Prosecution history
- 17 Feb 2026 — NOTICE OF ACCEPTANCE OF SEC. 71 - E-MAILED
- 17 Feb 2026 — REGISTERED-SEC.71 ACCEPTED
- 09 Feb 2026 — CASE ASSIGNED TO POST REGISTRATION PARALEGAL
- 06 Oct 2025 — TEAS SECTION 71 RECEIVED
- 20 Dec 2019 — NOTIFICATION PROCESSED BY IB
- 29 Nov 2019 — FINAL DISPOSITION NOTICE SENT TO IB
- 29 Nov 2019 — FINAL DISPOSITION PROCESSED
- 07 Nov 2019 — GRANT OF PROTECTION CREATED, TO BE SENT TO IB
- 08 Oct 2019 — REGISTERED-PRINCIPAL REGISTER
- 23 Jul 2019 — PUBLISHED FOR OPPOSITION
- 03 Jul 2019 — NOTICE OF PUBLICATION
- 18 Jun 2019 — APPLICATION FILING RECEIPT MAILED
- 17 Jun 2019 — APPROVED FOR PUB - PRINCIPAL REGISTER
- 12 Jun 2019 — ASSIGNED TO EXAMINER
- 12 Jun 2019 — NEW APPLICATION OFFICE SUPPLIED DATA ENTERED