Who owns the HYDRO-STONE trademark?

The HYDRO-STONE trademark is owned by UNITED STATES GYMPSUM COMPANY.

What class is the HYDRO-STONE trademark registered in?

The HYDRO-STONE trademark is registered in Class 012 (Vehicles & parts for locomotion).

What is the serial number for HYDRO-STONE?

The USPTO serial number for HYDRO-STONE is 71418798.

What is the registration number for HYDRO-STONE?

HYDRO-STONE is registered under USPTO registration number 373842.

Sealvo

Home Search: HYDRO-STONEHYDRO-STONE #71418798

Back

Updated Oct 1, 2026·17 searches this week

View on USPTO TSDR Find similar marks

HYD

USPTO Trademark Record

REGISTERED

HYDRO-STONE

SN 71418798·Reg 373842·Filed Apr 23, 1939

Owner UNITED STATES GYMPSUM COMPANY

Vehicles; apparatus for locomotion by land, air or water.

HYDRO-STONE (Serial No. 71418798), Registration No. 373842, is a registered US trademark filed on Apr 23, 1939 by UNITED STATES GYMPSUM COMPANY. This trademark covers Class 012 (Vehicles & parts for locomotion).

Section 8/9 declaration window: December 26, 2029

Conflict Analysis

Full conflict analysis for HYDRO-STONE (SN 71418798) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

HYDRO-STONE (Reg. #373842) is a registered US trademark that has been protecting its owner, UNITED STATES GYMPSUM COMPANY, since 1939. The mark covers Class 012 (Vehicles & parts for locomotion). Goods and services include Vehicles; apparatus for locomotion by land, air or water..

FILED

Apr 23, 1939

SERIAL

71418798

REG#

373842

REGISTERED

Dec 26, 1939

Filing Information

StatusREGISTERED

Filing DateApr 23, 1939

Serial Number71418798

Registration No.373842

Registration DateDec 26, 1939

Status DateOct 21, 2020

Next RenewalDecember 26, 2029

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application CurrentlySection 8 AcceptedSection 15 AcknowledgedTrademarkRenewal Filed

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 012Vehicles & parts for locomotion

US codes: 012

First use anywhere: Dec 31, 1933

First use in commerce: Dec 31, 1933

Vehicles; apparatus for locomotion by land, air or water.

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

Run a conflict check

Search by serial number, mark name, or logo. See conflicting marks ranked by risk with clear explanations of what contributed.

Run conflict check

Status History

27 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Oct 21, 2020

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Oct 21, 2020

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

REGISTERED AND RENEWED (FIFTH RENEWAL - 10 YRS)

Oct 21, 2020

REGISTERED AND RENEWED (FIFTH RENEWAL - 10 YRS)

REVIEW OF CORRESPONDENCE COMPLETE

Oct 21, 2020

REVIEW OF CORRESPONDENCE COMPLETE

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

Oct 21, 2020

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

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

May 29, 2020

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

May 29, 2020

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

May 29, 2020

TEAS CHANGE OF CORRESPONDENCE RECEIVED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jan 31, 2020

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

Jan 31, 2020

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

TEAS SECTION 8 & 9 RECEIVED

Dec 17, 2019

TEAS SECTION 8 & 9 RECEIVED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Dec 17, 2019

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Dec 26, 2018

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

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

Nov 17, 2009

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

REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)

Nov 17, 2009

REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)

TEAS SECTION 8 & 9 RECEIVED

Nov 12, 2009

TEAS SECTION 8 & 9 RECEIVED

CASE FILE IN TICRS

Oct 06, 2008

CASE FILE IN TICRS

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

Sep 25, 2007

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Sep 25, 2007

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Sep 25, 2007

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Sep 25, 2007

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

Jun 30, 2000

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

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

Jun 30, 2000

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

REGISTERED - SEC. 8 (10-YR) ACCEPTED/CHECK RECORD FOR SEC. 9

Jun 30, 2000

REGISTERED - SEC. 8 (10-YR) ACCEPTED/CHECK RECORD FOR SEC. 9

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

Nov 15, 1999

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

REGISTERED AND RENEWED (SECOND RENEWAL - 20 YRS)

Dec 26, 1979

REGISTERED AND RENEWED (SECOND RENEWAL - 20 YRS)

PUBLISHED SECTION 12(C)

Nov 23, 1948

PUBLISHED SECTION 12(C)

Other Marks in Class 012 — Vehicles & parts for locomotion

Recently filed and registered marks in the same international class.

HYD

HYDRO

90695921

Delta Enterprise Corp.

REGISTERED

HYD

HYDRO

79086816

HYDRO Holding GmbH & Co. KG

REGISTERED

HYD

HYDRO M_DRIVE

86972711

Marine Travelift, Inc.

REGISTERED

HYD

HYDRO GLIDE

88308701

Hangzhou Sino Eagle Yacht Co. Ltd.

REGISTERED

Other Marks by Brian Wishnow

Additional USPTO filings handled by the same attorney of record.

GRI

GRIPSTIK

76639614

REGISTERED

LOG

LogoMark

78365093

86615941

NOW WITH GASKET PRO TECHNOLOGY

86676961

REGISTERED

HYDRO-STONE

Run a conflict check

Other Marks in Class 012 — Vehicles & parts for locomotion

Other Marks by Brian Wishnow

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company