AT Trademark

Trademark Overview


On Monday, March 10, 2003, a trademark application was filed for AT with the United States Patent and Trademark Office. The USPTO has given the AT trademark a serial number of 78223725. The federal status of this trademark filing is CANCELLED - SECTION 8 as of Friday, November 28, 2025. This trademark is owned by Richardson Electronics, Ltd.. The AT trademark is filed in the Computer & Software Products & Electrical & Scientific Products category with the following description:

Audio equipment, namely, power audio amplifiers, receivers, tuners, graphic/parametric equalizers, audio compressors, audio mixing consoles, speakers, speaker enclosures and cabinets and speaker grills/baffles-- electrical equipment, namely, electrical impedance matching systems comprising volume controls and speakers selectors for residential or commercial sound/public address systems, audio cables, electrical connectors, electrical control systems comprising sound room combining or sound source distribution modules for residential or commercial public address sound systems, volume controls, attenuators and electrical transformers and wall outlet connector plates
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General Information


Serial Number78223725
Word MarkAT
Filing DateMonday, March 10, 2003
Status710 - CANCELLED - SECTION 8
Status DateFriday, November 28, 2025
Registration Number2953302
Registration DateTuesday, May 17, 2005
Mark Drawing3 - Illustration: Drawing or design which also includes word(s) / letter(s) / number(s)
Published for Opposition DateTuesday, March 23, 2004

Trademark Statements


Indication of Colors claimedColor is not claimed as a feature of the mark.
Goods and ServicesAudio equipment, namely, power audio amplifiers, receivers, tuners, graphic/parametric equalizers, audio compressors, audio mixing consoles, speakers, speaker enclosures and cabinets and speaker grills/baffles-- electrical equipment, namely, electrical impedance matching systems comprising volume controls and speakers selectors for residential or commercial sound/public address systems, audio cables, electrical connectors, electrical control systems comprising sound room combining or sound source distribution modules for residential or commercial public address sound systems, volume controls, attenuators and electrical transformers and wall outlet connector plates

Classification Information


International Class009 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire extinguishing apparatus.
US Class Codes021, 023, 026, 036, 038
Class Status Code2 - Sec. 8 - Entire Registration
Class Status DateFriday, November 28, 2025
Primary Code009
First Use Anywhere DateFriday, June 25, 2004
First Use In Commerce DateFriday, June 25, 2004

Trademark Owner History


Party NameRESIDEO LLC
Party Type33 - New Owner After Registration
Legal Entity Type16 - Limited Liability Company
AddressMELVILLE, NY 11747

Party NameADEMCO INC.
Party Type32 - New Owner After Registration
Legal Entity Type03 - Corporation
AddressWILMINGTON, DE 19808

Party NameHONEYWELL INTERNATIONAL INC.
Party Type31 - New Owner After Registration
Legal Entity Type03 - Corporation
AddressMORRISTOWN, NJ 07962

Party NameRichardson Electronics, Ltd.
Party Type30 - Original Registrant
Legal Entity Type03 - Corporation
AddressLaFox, IL 601470393

Party NameRichardson Electronics, Ltd.
Party Type20 - Owner at Publication
Legal Entity Type03 - Corporation
AddressLaFox, IL 601470393

Party NameRichardson Electronics, Ltd.
Party Type10 - Original Applicant
Legal Entity Type03 - Corporation
AddressLaFox, IL 601470393

Trademark Events


Event DateEvent Description
Monday, August 25, 2003ASSIGNED TO EXAMINER
Monday, September 1, 2003NON-FINAL ACTION E-MAILED
Thursday, September 4, 2003TEAS RESPONSE TO OFFICE ACTION RECEIVED
Thursday, September 4, 2003CORRESPONDENCE RECEIVED IN LAW OFFICE
Wednesday, October 15, 2003FINAL REFUSAL E-MAILED
Wednesday, November 19, 2003TEAS RESPONSE TO OFFICE ACTION RECEIVED
Wednesday, November 19, 2003CORRESPONDENCE RECEIVED IN LAW OFFICE
Friday, January 16, 2004CONTINUATION OF FINAL REFUSAL E-MAILED
Friday, January 23, 2004EXAMINERS AMENDMENT E-MAILED
Friday, January 23, 2004APPROVED FOR PUB - PRINCIPAL REGISTER
Wednesday, March 3, 2004NOTICE OF PUBLICATION
Tuesday, March 23, 2004PUBLISHED FOR OPPOSITION
Tuesday, June 15, 2004NOA MAILED - SOU REQUIRED FROM APPLICANT
Friday, July 30, 2004TEAS STATEMENT OF USE RECEIVED
Friday, July 30, 2004USE AMENDMENT FILED
Friday, August 20, 2004STATEMENT OF USE PROCESSING COMPLETE
Tuesday, August 24, 2004ASSIGNED TO EXAMINER
Friday, September 3, 2004SU - NON-FINAL ACTION - WRITTEN
Friday, September 3, 2004NON-FINAL ACTION E-MAILED
Tuesday, March 1, 2005FAX RECEIVED
Tuesday, March 1, 2005CORRESPONDENCE RECEIVED IN LAW OFFICE
Wednesday, March 9, 2005AMENDMENT FROM APPLICANT ENTERED
Friday, March 11, 2005ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED
Friday, March 18, 2005ASSIGNED TO LIE
Monday, March 21, 2005LAW OFFICE REGISTRATION REVIEW COMPLETED
Tuesday, May 17, 2005REGISTERED-PRINCIPAL REGISTER
Wednesday, July 11, 2007AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
Tuesday, May 18, 2010TEAS SECTION 8 & 15 RECEIVED
Thursday, June 3, 2010CASE ASSIGNED TO POST REGISTRATION PARALEGAL
Thursday, June 3, 2010REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
Wednesday, October 1, 2014TEAS CHANGE OF CORRESPONDENCE RECEIVED
Wednesday, October 1, 2014TEAS SECTION 8 & 9 RECEIVED
Friday, October 10, 2014CASE ASSIGNED TO POST REGISTRATION PARALEGAL
Friday, October 10, 2014REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
Friday, October 10, 2014REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
Friday, October 10, 2014NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
Wednesday, May 22, 2019AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
Thursday, January 23, 2020TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Thursday, January 23, 2020ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Friday, May 17, 2024COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
Monday, April 7, 2025TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Monday, April 7, 2025ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Monday, April 7, 2025TEAS CHANGE OF CORRESPONDENCE RECEIVED
Monday, April 7, 2025TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
Wednesday, May 7, 2025AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
Wednesday, July 9, 2025ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
Friday, November 28, 2025CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9