CLIFFS NOTES
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CLIFFS NOTES Trademark

Serial Number: 75814279 • Registration: 2497612

CLIFFS NOTES is a trademark filed by HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY on October 4, 1999. The trademark is classified under Class 9 (Computers & Electronics), Class 16 (Paper Goods), Class 28 (Toys & Sporting Goods). The application is currently registered and active.

Owner Contact Info

HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY (684 trademarks)

125 High Street
BOSTON, MA 02110

Entity Type: 03

WILEY PUBLISHING, INC. (213 trademarks)

111 River Street
Hoboken, NJ 07030

Entity Type: 03

COURSE HERO, INC. (21 trademarks)

REDWOOD CITY, CA 94063

Entity Type: 03

LEARNEO, INC. (39 trademarks)

2000 SEAPORT BLVD, FLOOR 3
REDWOOD CITY, CA 94063

Entity Type: 03

IDG BOOKS WORLDWIDE INC (214 trademarks)

111 River Street
Hoboken, NJ 07030

Entity Type: 03

Trademark Details

Filing Date

October 4, 1999

Registration Date

October 16, 2001

Published for Opposition

July 24, 2001

Goods & Services

[ pre-recorded computer software containing information on standardized test preparation, tutorials and study aids on a wide variety of subjects; multimedia software recorded on CD-ROM featuring study guides, tutorials in the field of literature, math, science, standardized testing, and occupational exams and testing; CD-ROM cases; decorative magnets ]

[ toy flying discs; toy stuffed animals ]

study guides on a wide variety of topics, including literature, math, science, standardized testing, and occupational exams and testing [ ; pens; highlighting markers; drafting and drawing rulers; calendars, posters; and paper banners ]

Filing History

TEAS CHANGE OF CORRESPONDENCE RECEIVED
Aug 14, 2025 TCCA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Aug 14, 2025 ARAA
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Aug 14, 2025 REAP
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
Aug 14, 2025 CHAN
TEAS CHANGE OF OWNER ADDRESS RECEIVED
Aug 14, 2025 COAR
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
Jan 25, 2023 ASGN
NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED
Jan 6, 2022 NAS8
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
Jan 6, 2022 RNL2
REGISTERED - SEC. 9 GRANTED/CHECK RECORD FOR SEC. 8
Jan 6, 2022 9G8P
REGISTERED - PARTIAL SEC. 8 (10-YR) ACCEPTED
Jan 6, 2022 8PRT
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
Jan 6, 2022 APRE
TEAS SECTION 8 & 9 RECEIVED
Jul 27, 2021 E89R
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
Jul 26, 2021 CHAN
TEAS CHANGE OF CORRESPONDENCE RECEIVED
Jul 26, 2021 TCCA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Jul 26, 2021 ARAA
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Jul 26, 2021 REAP
TEAS CHANGE OF OWNER ADDRESS RECEIVED
Jul 26, 2021 COAR
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
Jul 21, 2021 ASGN
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
Oct 16, 2020 REM2
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
Dec 11, 2019 ASCK
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Sep 5, 2018 ARAA
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Sep 5, 2018 REAP
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Jan 24, 2018 ARAA
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Jan 24, 2018 REAP
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
Jan 23, 2018 CHAN
TEAS CHANGE OF OWNER ADDRESS RECEIVED
Jan 23, 2018 COAR
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
Mar 13, 2013 ASCK
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
Nov 14, 2012 ASGN
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
Nov 18, 2011 RNL1
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
Nov 18, 2011 89AG
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
Nov 18, 2011 APRE
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
Oct 19, 2011 ASCK
TEAS SECTION 8 & 9 RECEIVED
Oct 13, 2011 E89R
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
Jul 20, 2011 ASCK
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Dec 17, 2007 ARAA
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Dec 17, 2007 REAP
REGISTERED - PARTIAL SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
Oct 24, 2007 C15P
ASSIGNED TO PARALEGAL
Oct 19, 2007 PLGL
REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED
Oct 11, 2007 815F
TEAS SECTION 8 & 15 RECEIVED
Oct 11, 2007 E815
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
Feb 14, 2007 ASCK
CASE FILE IN TICRS
Jan 19, 2007 CFIT
TEAS CHANGE OF OWNER ADDRESS RECEIVED
Oct 15, 2004 COAR
TEAS CHANGE OF CORRESPONDENCE RECEIVED
Aug 12, 2003 TCCA
REGISTERED-PRINCIPAL REGISTER
Oct 16, 2001 R.PR
PUBLISHED FOR OPPOSITION
Jul 24, 2001 PUBO
NOTICE OF PUBLICATION
Jul 11, 2001 NPUB
APPROVED FOR PUB - PRINCIPAL REGISTER
Apr 18, 2001 CNSA
FINAL REFUSAL MAILED
Sep 22, 2000 CNFR
CORRESPONDENCE RECEIVED IN LAW OFFICE
Aug 29, 2000 CRFA
NON-FINAL ACTION MAILED
Feb 29, 2000 CNRT
ASSIGNED TO EXAMINER
Feb 28, 2000 DOCK