SIGMA DELTA TAU

Live / Registered — Registered and renewed (as of 01 Aug 2025)

What this means for you

Registered since 16 Sept 1975. 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 16 Sept 2025).

Record

Serial number
73018512
Registration number
1020820
Mark type
Word mark
Filed
11 Apr 1974
Registered
16 Sept 1975
Next maintenance due
16 Sept 2025
Attorney of record
Micah E. Kamrass

Goods and services

  • Class 200: INDICATING MEMBERSHIP IN APPLICANT

Owner

Prosecution history

  • 01 Aug 2025 — NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
  • 01 Aug 2025 — REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)
  • 01 Aug 2025 — REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
  • 01 Aug 2025 — CASE ASSIGNED TO POST REGISTRATION PARALEGAL
  • 13 Mar 2025 — TEAS SECTION 8 & 9 RECEIVED
  • 16 Sept 2024 — COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
  • 11 Jul 2021 — TEAS CHANGE OF CORRESPONDENCE RECEIVED
  • 11 Jul 2021 — ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
  • 11 Jul 2021 — TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
  • 10 Oct 2014 — NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
  • 10 Oct 2014 — REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)
  • 10 Oct 2014 — REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
  • 09 Oct 2014 — TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED
  • 08 Oct 2014 — POST REGISTRATION ACTION MAILED - SEC. 8 & 9
  • 08 Oct 2014 — CASE ASSIGNED TO POST REGISTRATION PARALEGAL

View this trademark record on Marksy