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Country	kind	publication No.	Filing Date	Type	Sub-Type
DE	A1	DE4019983	Jun 22, 1990	Patent	Application
Type : Patent Sub-Type : Application
DOC. LAID OPEN (FIRST PUBLICATION)		LEICHTMETALLKOLBEN		Jan 02, 1992
EP	A1	EP0463650	May 01, 1991	Patent	Application
Type : Patent Sub-Type : Application
APPLICATION PUBLISHED WITH SEARCH REPORT		Leichtmetallkolben		Jan 02, 1992
JP	A	JPH04231656	May 24, 1991	Patent	Application
Type : Patent Sub-Type : Application
Published unexamined patent application		LIGHT METAL MADE PISTON		Aug 20, 1992

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

Patent Owner(s)

Patent Owner	Address
KOLBENSCHMIDT AKTIENGESELLSCHAFT	KARL-SCHMIDT-STRASSE D-74172 NECKARSULM

International Classification(s)

• F02F:CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGI....

• 1991 Application Filing Year
• F02F Class
• 66 Applications Filed
• 34 Patents Issued To-Date
• 51.52 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bloschies, Gerhard	Bad Friedrichshall, DE	1	6
# of filed Patents : 1 Total Citations : 6
Mielke, Siegfried	Neckarsulm, DE	20	250
# of filed Patents : 20 Total Citations : 250

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Patent Citation Ranking

• 6 Citation Count
• F02F Class

• 0 % this patent is cited more than
• 33 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: 5092289

Light alloy piston

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Abstract

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In a light alloy piston for use in diesel engines for an indirect fuel injection, a body of fibrous material is embedded in the cast piston head and is formed with a shallow combustion recess. In order to improve the conduction of heat outside the portion formed with the combustion recess, the body of fibrous material has a larger height on the side that is formed with the combustion recess than in the remaining portion of the piston head.

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Description

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Claims

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Claims data not available

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Legal Events

 

• STCH2018
• FP1996
• LAPS1996
• REMI1995
• I1992
• F1991
• AS1991
• PD1990

Date	Code	Event	Description
Jan 27, 2018	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Mar 06, 1996	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Mar 06, 1996
Mar 03, 1996	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Oct 10, 1995	REMI	MAINTENANCE FEE REMINDER MAILED
Mar 03, 1992	I	Issuance
May 15, 1991	F	Filing
May 02, 1991	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:BLOSCHIES, GERHARD;MIELKE, SIEGFRIED;REEL/FRAME:005713/0726 Owner name: KOLBENSCHMIDT AKTIENGESELLSCHAFT Effective Date: May 02, 1991
Jun 22, 1990	PD	Priority Date