Family

Loading Family data...

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

Patent Owner(s)

Patent Owner	Address
WORTHINGTON ARMSTRONG VENTURE	101 LINDENWOOD DRIVE SUITE 350 MALVERN PA 19355

International Classification(s)

• B23P:OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVE....

• 1989 Application Filing Year
• B23P Class
• 404 Applications Filed
• 0 Patents Issued To-Date
• 0 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Platt, William J	Aston, PA	41	857
# of filed Patents : 41 Total Citations : 857

Cited Art Landscape

Load Citation

• No Cited Art to Display

Loading Cited Art Landscape...

Patent Citation Ranking

• 1 Citation Count
• B23P Class

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

Forward Cite Landscape

Load Citation

• No Forward Cites to Display

Loading Forward Cite Landscape...

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: 4955134

Method of forming a spring-like fire strip

---

Abstract

---

A fire strip for a suspended grid ceiling has an inner spring steel web having a slightly arcuate cross section, and an outer web of soft steel wrapped around the inner web. A finished strip is formed by bending the strip normal to the strip body at both ends. When the ends are bent, a spring-like, yieldable, upwardly curved arch is formed which fits snugly against a panel when in place in a ceiling.

---

 

---

Description

---

Claims

---

Claims data not available

---

Legal Events

 

• STCH2002
• FP2002
• LAPS2002
• REMI2002
• FPAY1998
• AS1997
• FPAY1994
• FEPP1993
• I1990
• F1989
• PD1988

Date	Code	Event	Description
Oct 09, 2002	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Sep 11, 2002	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Sep 11, 2002
Sep 11, 2002	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Mar 26, 2002	REMI	MAINTENANCE FEE REMINDER MAILED
Feb 02, 1998	FPAY	FEE PAYMENT	year of fee payment: 8
Jan 21, 1997	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WORTHINGTON STEEL COMPANY, THE;REEL/FRAME:008334/0403 Owner name: WORTHINGTON ARMSTRONG VENTURE, PENNSYLVANIA Effective Date: Jan 21, 1997
Jan 28, 1994	FPAY	FEE PAYMENT	year of fee payment: 4
Dec 02, 1993	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Sep 11, 1990	I	Issuance
Oct 30, 1989	F	Filing
Nov 10, 1988	PD	Priority Date