Who owns the TANDEM trademark?

The TANDEM trademark is owned by Affymax, Inc..

What is the serial number for TANDEM?

The USPTO serial number for TANDEM is 85658567.

What is the registration number for TANDEM?

TANDEM is registered under USPTO registration number 0.

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Updated Sep 20, 2026·10 searches this week

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TAN

USPTO Trademark Record

ABANDONED

TANDEM

Q: What class is the TANDEM trademark registered in?

The TANDEM trademark is registered in Class 041 (Education & entertainment services), Class 044 (Medical, veterinary & beauty care services).

SN 85658567·Reg 0·Filed Jun 21, 2012

Owner Affymax, Inc.

Education; providing of training; entertainment; sporting and cultural activities.; Medical services; veterinary services; hygienic and beauty care for human beings or animals; agriculture, aquaculture, horticulture and forestry services.

TANDEM (Serial No. 85658567), Registration No. 0, is a abandoned US trademark filed on Jun 21, 2012 by Affymax, Inc.. This trademark covers Class 041 (Education & entertainment services), Class 044 (Medical, veterinary & beauty care services).

Conflict Analysis

Full conflict analysis for TANDEM (SN 85658567) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

TANDEM (Reg. #0) is an abandoned US trademark that was filed in 2012 but has since been abandoned. The mark covers Class 041 (Education & entertainment services) and Class 044 (Medical, veterinary & beauty care services) respectively. Goods and services include Education; providing of training; entertainment; sporting and cultural activities.; Medical services; veterinary service....

FILED

Jun 21, 2012

SERIAL

85658567

REG#

REGISTERED

Dec 31, 1969

Filing Information

StatusABANDONED

Filing DateJun 21, 2012

Serial Number85658567

Registration No.0

Registration DateDec 31, 1969

Status DateSep 11, 2013

Mark TypeDesign with words

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 041Education & entertainment services

US codes: 100, 101, 107

Education; providing of training; entertainment; sporting and cultural activities.

Class 044Medical, veterinary & beauty care services

US codes: 100, 101

Medical services; veterinary services; hygienic and beauty care for human beings or animals; agriculture, aquaculture, horticulture and forestry services.

This description is as filed with the USPTO and defines the scope of trademark protection.

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Status History

16 events

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Oct 11, 2013

TEAS CHANGE OF CORRESPONDENCE RECEIVED

ABANDONMENT - FAILURE TO RESPOND OR LATE RESPONSE

Sep 11, 2013

ABANDONMENT - FAILURE TO RESPOND OR LATE RESPONSE

ABANDONMENT NOTICE MAILED - FAILURE TO RESPOND

Sep 11, 2013

ABANDONMENT NOTICE MAILED - FAILURE TO RESPOND

NON-FINAL ACTION WRITTEN

Feb 11, 2013

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Feb 11, 2013

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Feb 11, 2013

NOTIFICATION OF NON-FINAL ACTION E-MAILED

TEAS/EMAIL CORRESPONDENCE ENTERED

Jan 19, 2013

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Jan 18, 2013

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Jan 18, 2013

CORRESPONDENCE RECEIVED IN LAW OFFICE

NON-FINAL ACTION WRITTEN

Jul 19, 2012

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Jul 19, 2012

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Jul 19, 2012

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Jul 12, 2012

ASSIGNED TO EXAMINER

NOTICE OF DESIGN SEARCH CODE MAILED

Jul 07, 2012

NOTICE OF DESIGN SEARCH CODE MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jul 06, 2012

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Jun 25, 2012

NEW APPLICATION ENTERED

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