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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
AMERISTAR PERIMETER SECURITY USA INC	1555 N MINGO ROAD TULSA OK 74116

International Classification(s)

• 2501:BUILDING MATERIALS

• 2011 Application Filing Year
• 2501 Class
• 281 Applications Filed
• 281 Patents Issued To-Date
• 100 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Gibbs, Edward L	Tulsa, US	42	896
# of filed Patents : 42 Total Citations : 896

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Patent Citation Ranking

• 8 Citation Count
• 2501 Class

• 0 % this patent is cited more than
• 13 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent No: 9879748

Two position valve with face seal and pressure relief port

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Abstract

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A shock absorber has a housing with a piston rod assembly disposed therein. A first rod guide member is secured within a first portion of the housing so as to be concentrically disposed about at least a portion of the piston rod assembly. A second rod guide member is secured within the housing adjacent the first rod guide member so as to be concentrically disposed about at least another portion of the piston rod assembly. A digital valve assembly is disposed within the second rod guide member and fluidly couples chambers within the shock absorber.

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Description

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Claims

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Claims data not available

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Legal Events

 

• MAFP2025
• MAFP2021
• I2017
• STCF2017
• P2015
• F2015
• PD2013
• AS2013
• AS2013

Date	Code	Event	Description
Feb 17, 2025	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8
Feb 03, 2021	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4
Aug 15, 2017	I	Issuance
Jul 26, 2017	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Nov 26, 2015	P	Published
Aug 06, 2015	F	Filing
Feb 11, 2013	PD	Priority Date
Jan 13, 2013	AS	ASSIGNMENT	free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT APPL. NO. 14/816,510 PREVIOUSLY RECORDED AT REEL: 039148 FRAME: 0094. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNOR:CATEXEL B.V.;REEL/FRAME:039697/0892 Owner name: CATEXEL LIMITED, ENGLAND Effective Date: Jan 13, 2013
Jan 13, 2013	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HAGE, RONALD;DE BOER, JOHANNES WIETSE;MAAIJEN, KARIN;REEL/FRAME:039144/0797 Owner name: CATEXEL B.V., NETHERLANDS Effective Date: Jan 31, 2013 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CATEXEL LIMITED;REEL/FRAME:039148/0098 Owner name: CHEMSENTI LIMITED, ENGLAND Effective Date: Nov 18, 2013 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CATEXEL B.V;REEL/FRAME:039148/0094 Owner name: CATEXEL LIMITED, ENGLAND Effective Date: Jan 13, 2013