Who owns the PHOS-CHEK trademark?

The PHOS-CHEK trademark is owned by PERIMETER SOLUTIONS LP.

What class is the PHOS-CHEK trademark registered in?

The PHOS-CHEK trademark is registered in Class 006 (Common metals, their alloys & metal goods).

What is the serial number for PHOS-CHEK?

The USPTO serial number for PHOS-CHEK is 72252876.

What is the registration number for PHOS-CHEK?

PHOS-CHEK is registered under USPTO registration number 837738.

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Home Search: PHOS-CHEKPHOS-CHEK #72252876

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Updated Oct 10, 2026·9 searches this week

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PHO

USPTO Trademark Record

REGISTERED

PHOS-CHEK

SN 72252876·Reg 837738·Filed

Owner PERIMETER SOLUTIONS LP

Common metals and their alloys, ores; metal materials for building and construction; transportable buildings of metal; non-electric cables and wires of common metal; small items of metal hardware; metal containers for storage or transport; safes.

PHOS-CHEK (Serial No. 72252876), Registration No. 837738, is a registered US trademark by PERIMETER SOLUTIONS LP. This trademark covers Class 006 (Common metals, their alloys & metal goods).

Section 8/9 declaration window: November 01, 2027

Mark Intelligence

PHOS-CHEK (Reg. #837738) is a registered US trademark that has been protecting its owner, PERIMETER SOLUTIONS LP, since its filing date. The mark covers Class 006 (Common metals, their alloys & metal goods). Goods and services include Common metals and their alloys, ores; metal materials for building and construction; transportable buildings of metal; n....

FILED

SERIAL

72252876

REG#

837738

Filing Information

StatusREGISTERED

Serial Number72252876

Registration No.837738

Status DateNov 08, 2017

Next RenewalNovember 01, 2027

Mark TypeTypeset (words/letters/numbers)

Attorney Docket18931E-56US

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application CurrentlySection 8 AcceptedSection 15 AcknowledgedTrademark

International Filings

Madrid Protocol1 filings

This mark has 1 Madrid Protocol filing on record with the USPTO.

1086550

480Jul 14, 2011

Source: USPTO Madrid International Filing Requests

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 006Common metals, their alloys & metal goods

US codes: 006

First use anywhere: Jun 25, 1963

First use in commerce: Jun 25, 1963

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

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Status History

31 events

TEAS CHANGE OF OWNER ADDRESS RECEIVED

May 20, 2026

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

May 20, 2026

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

May 20, 2026

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

May 20, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

May 20, 2026

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

May 20, 2026

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Mar 24, 2026

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Nov 24, 2021

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Feb 01, 2019

TEAS CHANGE OF CORRESPONDENCE RECEIVED

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Jun 27, 2018

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

May 23, 2018

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

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

May 04, 2018

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

May 04, 2018

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Nov 08, 2017

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Nov 08, 2017

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

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

Nov 08, 2017

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

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

Nov 08, 2017

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

TEAS SECTION 8 & 9 RECEIVED

Oct 13, 2017

TEAS SECTION 8 & 9 RECEIVED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Oct 13, 2017

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Oct 31, 2016

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

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Feb 11, 2015

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

CASE FILE IN TICRS

Feb 06, 2009

CASE FILE IN TICRS

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

Aug 03, 2007

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

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Aug 03, 2007

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

ASSIGNED TO PARALEGAL

Jul 25, 2007

ASSIGNED TO PARALEGAL

TEAS SECTION 8 & 9 RECEIVED

Jul 02, 2007

TEAS SECTION 8 & 9 RECEIVED

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

Jul 02, 2007

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

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Apr 05, 2006

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Nov 19, 2003

TEAS CHANGE OF CORRESPONDENCE RECEIVED

REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)

Oct 31, 1987

REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)

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

Sep 10, 1987

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

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