DEF CON
Live / Registered — Registered and renewed (as of 10 Dec 2025)
What this means for you
Registered since 25 Oct 2005. 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 25 Oct 2025).
Record
- Serial number
- 78345523
- Registration number
- 3009498
- Mark type
- Stylized text
- Filed
- 24 Dec 2003
- Published for opposition
- 16 Nov 2004
- Registered
- 25 Oct 2005
- Next maintenance due
- 25 Oct 2025
- Attorney of record
- Alexander J.A. Garcia
Goods and services
- Class 041 — Education and entertainment services: Educational seminars, classes, speaker series, conferences and training in the fields of computer and network security, information security, data and telephony network security, Internet security, computer and network technology, computer and network hardware, and computer and network software; training in the use and operation of computers and computer software; and computer and computer software education training
Owner
- Def Con Communications, Inc., Seattle, WA, US
- Def Con Communications, Inc., Seattle, WA, US
- Def Con Communications, Inc., Seattle, WA, US
Prosecution history
- 10 Dec 2025 — NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
- 10 Dec 2025 — REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
- 10 Dec 2025 — REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
- 10 Dec 2025 — CASE ASSIGNED TO POST REGISTRATION PARALEGAL
- 28 Aug 2025 — TEAS SECTION 8 & 9 RECEIVED
- 25 Oct 2024 — COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
- 30 Mar 2022 — APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
- 30 Mar 2022 — TEAS CHANGE OF CORRESPONDENCE RECEIVED
- 30 Mar 2022 — ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
- 30 Mar 2022 — TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
- 30 Mar 2022 — TEAS CHANGE OF OWNER ADDRESS RECEIVED
- 07 Jan 2016 — NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
- 07 Jan 2016 — REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
- 07 Jan 2016 — REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
- 05 Jan 2016 — CASE ASSIGNED TO POST REGISTRATION PARALEGAL