SHAMROCK
Live / Registered — Registered and renewed (as of 13 Jan 2026)
What this means for you
Registered since 06 Jul 1976. 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 06 Jul 2026).
Record
- Serial number
- 73064883
- Registration number
- 1042911
- Mark type
- Word mark
- Filed
- 02 Oct 1975
- Registered
- 06 Jul 1976
- Next maintenance due
- 06 Jul 2026
- Attorney of record
- Michael A. Jaffe
Goods and services
- Class 019 — Non-metallic building materials: REFRACTORY SHAPES, CEMENTS AND RAMMING MIXES
Owner
- HARBISONWALKER INTERNATIONAL, INC., Pittsburgh, PA, US
- NORTH AMERICAN REFRACTORIES COMPANY, MOON TOWNSHIP, PA, US
- NL INDUSTRIES, INC., NEW YORK, NY, US
Prosecution history
- 13 Jan 2026 — NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
- 13 Jan 2026 — REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)
- 13 Jan 2026 — REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
- 13 Jan 2026 — CASE ASSIGNED TO POST REGISTRATION PARALEGAL
- 13 Oct 2025 — TEAS CHANGE OF CORRESPONDENCE RECEIVED
- 13 Oct 2025 — ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
- 13 Oct 2025 — TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
- 08 Oct 2025 — TEAS SECTION 8 & 9 RECEIVED
- 06 Jul 2025 — COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
- 31 May 2023 — ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
- 15 Oct 2016 — NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
- 15 Oct 2016 — REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)
- 15 Oct 2016 — REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
- 15 Oct 2016 — CASE ASSIGNED TO POST REGISTRATION PARALEGAL
- 10 Aug 2016 — AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP