NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
03/07/2026
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Official data from USPTO
DIFFERENCE ENGINE
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Active USPTO registrationType: CombinedOffice: United States
Risk and opportunity diagnosis
Executive reading for naming, filing, and monitoring decisions.
USPTO status
Active USPTO registration
Case type
Application and registration
Recorded events
35
Latest update
03/31/2026
Trademark type
Combined
Nice classes
42
Filing date
09/18/2014
Registration date
11/24/2015
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
03/07/2026
Last transaction
03/31/2026
Responsible office
United States Patent and Trademark Office
Status code
800
Official register
Principal Register
First use anywhere
07/06/2012
First use in commerce
07/06/2012
Drawing code
3
Owner type
16
Owner location
WASHINGTON, DC, US
Examiner
DALIER, JOHN DAVID
Current location
PUBLICATION AND ISSUE SECTION
Mark description
The mark consists of the term "DIFFERENCE" over the term "ENGINE" all to the left of design of a vertically standing half circle surrounded by 5 boxes.
Holders and representatives
Holders
LO VENTURES LLC
CENGAGE LEARNING, INC.
LEARNING OBJECTS, LLC
Learning Objects, Inc.
Representatives
Thomas W. Brooke HOLLAND & KNIGHT LLP
Technical classification
Nice Classes
Class 42
Vienna Codes
No Vienna codes available.
Goods and services
Class 42
Software development services in the field of education; hosting the softwarewebsites and other computer applications of others on a virtual private server
Publications
History of USPTO decisions and trademark events.
35 publications found
RNL1
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
03/07/2026
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
03/07/2026
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
03/06/2026
E89R
TEAS SECTION 8 & 9 RECEIVED
12/11/2025
REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
11/24/2024
NA85
NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED
09/20/2021
C15A
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
09/20/2021
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
09/20/2021
E815
TEAS SECTION 8 & 15 RECEIVED
06/07/2021
REM1
COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED
11/24/2020
ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
07/22/2020
ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
03/04/2020
ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
01/29/2020
R.PR
REGISTERED-PRINCIPAL REGISTER
11/24/2015
NPUB
OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
09/08/2015
PUBO
PUBLISHED FOR OPPOSITION
09/08/2015
NONP
NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
08/19/2015
PREV
LAW OFFICE PUBLICATION REVIEW COMPLETED
08/06/2015
ALIE
ASSIGNED TO LIE
08/01/2015
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
07/21/2015
NREV
NOTICE OF REVIVAL - E-MAILED
07/20/2015
TEME
TEAS/EMAIL CORRESPONDENCE ENTERED
07/20/2015
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
07/20/2015
TROA
TEAS RESPONSE TO OFFICE ACTION RECEIVED
07/20/2015
PETG
PETITION TO REVIVE-GRANTED
07/20/2015
PROA
TEAS PETITION TO REVIVE RECEIVED
07/20/2015
ABN2
ABANDONMENT - FAILURE TO RESPOND OR LATE RESPONSE
07/20/2015
GNRN
NOTIFICATION OF NON-FINAL ACTION E-MAILED
12/22/2014
GNRT
NON-FINAL ACTION E-MAILED
12/22/2014
CNRT
NON-FINAL ACTION WRITTEN
12/22/2014
DOCK
ASSIGNED TO EXAMINER
12/15/2014
MDSC
NOTICE OF DESIGN SEARCH CODE E-MAILED
09/27/2014
NWOS
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
09/26/2014
NWAP
NEW APPLICATION ENTERED
09/22/2014
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