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Official data from USPTO

CALSPERSE

Did you know this trademark is already registered in United States?

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Active USPTO registrationType: WordOffice: United States

Quick snapshot

CALSPERSE

ST13

US500000074691247

Class

1

Filing

74691247

Registration

2031608

Risk and opportunity diagnosis

Executive reading for naming, filing, and monitoring decisions.

USPTO status

Active USPTO registration

Case type

Application and registration

Recorded events

32

Latest update

05/19/2026

Trademark type

Word

Nice classes

1

Filing date

06/20/1995

Registration date

01/21/1997

Expiration date

-

Complete case details

Structured fields from the responsible authority and the official record.

Status date

04/30/2026

Last transaction

05/19/2026

Responsible office

United States Patent and Trademark Office

Status code

800

Official register

Principal Register

First use anywhere

09/14/1976

First use in commerce

09/14/1976

Drawing code

1

Owner type

16

Owner location

WEST HAVEN, CT, US

Examiner

JENKINS JR, CHARLES L

Current location

PUBLICATION AND ISSUE SECTION

Holders and representatives

Holders

AZURE WATER SERVICES, LLC
JAMESTOWN CHEMCIAL COMPANY, INC.

Representatives

Mary R. Bonzagni Bulkley, Richardson and Gelinas, LLP

Technical classification

Nice Classes

Class 1

Vienna Codes

No Vienna codes available.

Goods and services

Class 1

scale inhibitor and heat transfer improving agent used in water treatment chemical formulations

Publications

History of USPTO decisions and trademark events.

32 publications found

NA89

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

04/30/2026

RNL3

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

04/30/2026

89AG

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

04/30/2026

APRE

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

04/30/2026

E89R

TEAS SECTION 8 & 9 RECEIVED

02/24/2026

REM2

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

01/21/2026

CHAN

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

08/04/2022

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

08/04/2022

ARAA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

08/04/2022

REAP

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

08/04/2022

COAR

TEAS CHANGE OF OWNER ADDRESS RECEIVED

08/04/2022

NA89

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

10/18/2016

RNL2

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

10/18/2016

89AG

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

10/18/2016

APRE

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

10/18/2016

E89R

TEAS SECTION 8 & 9 RECEIVED

08/04/2016

ASCK

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

11/05/2008

RNL1

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

03/27/2007

89AG

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

03/27/2007

PLGL

ASSIGNED TO PARALEGAL

03/14/2007

89AF

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

01/11/2007

E89R

TEAS SECTION 8 & 9 RECEIVED

01/11/2007

CFIT

CASE FILE IN TICRS

12/28/2006

C15A

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

04/19/2002

815F

REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED

02/19/2002

R.PR

REGISTERED-PRINCIPAL REGISTER

01/21/1997

PUBO

PUBLISHED FOR OPPOSITION

10/29/1996

NPUB

NOTICE OF PUBLICATION

09/27/1996

CNSA

APPROVED FOR PUB - PRINCIPAL REGISTER

08/27/1996

CRFA

CORRESPONDENCE RECEIVED IN LAW OFFICE

07/22/1996

CNRT

NON-FINAL ACTION MAILED

02/14/1996

DOCK

ASSIGNED TO EXAMINER

02/07/1996

Continuous trademark protection

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