CLIFFSNOTES
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CLIFFSNOTES Trademark

Serial Number: 75871303 • Registration: 2652306

CLIFFSNOTES is a trademark filed by HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY on December 15, 1999. The trademark is classified under Class 36 (Insurance & Financial), Class 41 (Education & Entertainment), Class 42 (Computer & Scientific), Class 16 (Paper Goods), Class 25 (Clothing). 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

December 15, 1999

Registration Date

November 19, 2002

Published for Opposition

December 4, 2001

Goods & Services

Providing websites on the Internet featuring information in the fields of [ entertainment, ] education, study tools, test preparation, college preparation, music and sports

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

[ Clothing, namely, t-shirts, sweatshirts and hats ]

Providing websites on the Internet featuring information in the fields of financial planning and management, personal finance, investments, credit, loans and home buying and selling

Providing websites on the Internet featuring information in the fields of [ computers, computer software, computer hardware, ] the Internet, electronic devices, careers, life skills, and car buying and selling

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
Feb 15, 2023 ASGN
NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED
Sep 30, 2022 NAS8
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
Sep 30, 2022 RNL2
REGISTERED - SEC. 9 GRANTED/CHECK RECORD FOR SEC. 8
Sep 30, 2022 9G8P
REGISTERED - PARTIAL SEC. 8 (10-YR) ACCEPTED
Sep 30, 2022 8PRT
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
Sep 30, 2022 APRE
TEAS SECTION 8 & 9 RECEIVED
Apr 5, 2022 E89R
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
Nov 19, 2021 REM2
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
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
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
Dec 4, 2012 NA89
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
Dec 4, 2012 RNL1
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
Dec 4, 2012 89AG
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
Dec 4, 2012 APRE
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
Nov 14, 2012 ASGN
TEAS SECTION 8 & 9 RECEIVED
Nov 2, 2012 E89R
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
Jul 20, 2011 ASCK
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
Nov 4, 2008 C15A
ASSIGNED TO PARALEGAL
Oct 23, 2008 PLGL
TEAS SECTION 8 & 15 RECEIVED
Oct 21, 2008 E815
CASE FILE IN TICRS
Feb 19, 2008 CFIT
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
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
Feb 14, 2007 ASCK
TEAS CHANGE OF OWNER ADDRESS RECEIVED
Oct 15, 2004 COAR
TEAS CHANGE OF CORRESPONDENCE RECEIVED
Aug 12, 2003 TCCA
REGISTERED-PRINCIPAL REGISTER
Nov 19, 2002 R.PR
ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED
Sep 19, 2002 CNPR
STATEMENT OF USE PROCESSING COMPLETE
Sep 17, 2002 SUPC
USE AMENDMENT FILED
Aug 26, 2002 IUAF
PAPER RECEIVED
Aug 26, 2002 MAIL
NOA MAILED - SOU REQUIRED FROM APPLICANT
Feb 26, 2002 NOAM
PUBLISHED FOR OPPOSITION
Dec 4, 2001 PUBO
NOTICE OF PUBLICATION
Nov 14, 2001 NPUB
APPROVED FOR PUB - PRINCIPAL REGISTER
Aug 13, 2001 CNSA
EXAMINERS AMENDMENT MAILED
Aug 2, 2001 CNEA
CORRESPONDENCE RECEIVED IN LAW OFFICE
Jun 18, 2001 CRFA
FINAL REFUSAL MAILED
Dec 18, 2000 CNFR
CORRESPONDENCE RECEIVED IN LAW OFFICE
Dec 1, 2000 CRFA
NON-FINAL ACTION MAILED
Jun 7, 2000 CNRT
ASSIGNED TO EXAMINER
Jun 2, 2000 DOCK
ASSIGNED TO EXAMINER
May 25, 2000 DOCK