DENSTONE

LIVE

Serial Number

73031492

Owner

NORTON COMPANY

Attorney

Sara T. Colburn

First Use Date

Aug 13, 1969

Filing Date

Sep 9, 1974

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DENSTONE Trademark

Serial Number: 73031492 • Registration: 1021460

DENSTONE is a trademark filed by NORTON COMPANY on September 9, 1974. The trademark is classified under Class 11 (Environmental Control). The application is currently registered and active.

Trademark Classes

Class 11 - Environmental Control

Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying

Owner Contact Info

NORTON COMPANY (288 trademarks)

WORCESTER MA

Entity Type: 98

SAINT-GOBAIN ABRASIVES, INC. (193 trademarks)

WORCESTER, MA 01615

Entity Type: 03

SAINT-GOBAIN CERAMICS & PLASTICS, INC. (156 trademarks)

20 Moores Road
Malvern, PA 19355

Entity Type: 03

Legal Representation

Attorney of Record

Sara T. Colburn

1,191 trademarks filed View all →

Correspondence Address

Sara T. Colburn Cantor Colburn LLP

20 Church Street

Floor 22

Hartford, CT 06103

United States

Trademark Details

Filing Date

September 9, 1974

Registration Date

September 30, 1975

First Use Anywhere

August 13, 1969

First Use in Commerce

August 13, 1969

Goods & Services

CERAMIC BALLS AND PELLETS USED AS CATALYST BED SUPPORTS

Filing History

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

Jan 18, 2026 NA89

REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)

Jan 18, 2026 RNL4

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

Jan 18, 2026 89AG

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jan 18, 2026 APRE

TEAS SECTION 8 & 9 RECEIVED

Oct 13, 2025 E89R

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Oct 9, 2025 EWAF

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Oct 9, 2025 TCCA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Oct 9, 2025 ARAA

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

Oct 9, 2025 REAP

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Oct 9, 2025 CHAN

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Oct 9, 2025 COAR

COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED

Sep 30, 2024 REM2

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jun 20, 2023 TCCA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jun 20, 2023 ARAA

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

Jun 20, 2023 REAP

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Jun 20, 2023 CHAN

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Jun 20, 2023 COAR

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

May 4, 2016 ARAA

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

May 4, 2016 REAP

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

Nov 5, 2015 NA89

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

Nov 5, 2015 RNL3

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

Nov 5, 2015 89AG

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Nov 5, 2015 APRE

TEAS SECTION 8 & 9 RECEIVED

Sep 25, 2015 E89R

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Sep 23, 2015 ASGN

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Jul 12, 2005 RNL2

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

Jul 12, 2005 89AG

ASSIGNED TO PARALEGAL

Jul 12, 2005 PLGL

REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED

May 16, 2005 89AF

TEAS SECTION 8 & 9 RECEIVED

May 16, 2005 E89R

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Sep 20, 1995 RNL1

REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8

Jul 24, 1995 9.AF

REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.

Dec 21, 1981 C15A

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