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

Patent Owner(s)

Patent Owner	Address
WILSON'S GUN SHOP	2234 CR 719 BERRYVILLE AZ 72616

International Classification(s)

• F41A:FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMAL....

• 2007 Application Filing Year
• F41A Class
• 190 Applications Filed
• 126 Patents Issued To-Date
• 66.32 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Olson, Douglas Dean	Huntsville , US	5	54
# of filed Patents : 5 Total Citations : 54

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Patent Citation Ranking

• 20 Citation Count
• F41A Class

• 64.52 % this patent is cited more than
• 16 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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
December 08, 2009	US,7627974,B2   US7627974B2	GRANTED PATENT AS SECOND PUBLICATION
September 04, 2008	US,20080209788,A1   US20080209788A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7627974

Bridged extractor spring for firearms

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Abstract

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New and unique improvements of prior known M4/M16 firearms are disclosed that comprise (A) a bolt which, in addition to all of the normal M4/M16 features is configured or reconfigured to accept a bridged extractor spring which straddles the firing pin and presses against the bottom of the extractor with the bridging wire, and (B) a bridged extractor spring which is a single part, wound with dual spaced helical coils connected with a bridge wire that maintains the spacing at the top of the spring. The bridge wire preferably crosses diagonally between and is tangent to both coils.

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Description

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Claims

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Claims data not available

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Legal Events

 

• STCH2014
• FP2013
• LAPS2013
• REMI2013
• I2009
• P2008
• F2007
• PD2007
• AS2007

Date	Code	Event	Description
Jan 06, 2014	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Dec 08, 2013	FP	EXPIRED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Dec 08, 2013
Dec 08, 2013	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Jul 19, 2013	REMI	MAINTENANCE FEE REMINDER MAILED
Dec 08, 2009	I	Issuance
Sep 04, 2008	P	Published
Mar 02, 2007	F	Filing
Mar 02, 2007	PD	Priority Date
Feb 21, 2007	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:OLSON, DOUGLAS D.;REEL/FRAME:019099/0382 Owner name: WILSON'S GUN SHOP, ARKANSAS Effective Date: Feb 21, 2007 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:OLSON, DOUGLAS D.;REEL/FRAME:019170/0801 Owner name: WILSON'S GUN SHOP, ARKANSAS Effective Date: Feb 21, 2007