Family

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

Patent Owner(s)

Patent Owner	Address
GOSUDARSTVENNY PROEKTNO-KONSTRUKTORSKY I EXPERIMENTALNY INSTITUT UGOLNOGO	ULITSA MARKHLEVSKOGO 18 MASHINOSTROENIA USSR MOSCOW

International Classification(s)

• E21C:MINING OR QUARRYING

• 1982 Application Filing Year
• E21C Class
• 91 Applications Filed
• 2 Patents Issued To-Date
• 2.20 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Gaponov, Valery M	Moscow, SU	1	3
# of filed Patents : 1 Total Citations : 3
Masovich, Felix Z	Moscow, SU	5	12
# of filed Patents : 5 Total Citations : 12
Spektor, Jury N	Moscow, SU	1	3
# of filed Patents : 1 Total Citations : 3

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Patent Citation Ranking

• 3 Citation Count
• E21C Class

• 0 % this patent is cited more than
• 40 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: 4508391

Mining machine for extraction of minerals

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Abstract

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A mining machine comprises a body, drum-type cutting heads, a gantry coupled with the body, adjustable hydraulic supports disposed inside the body, grippers hinge-connected to the body by means of levers located in parallel to one another and adapted to permit moving the machine in a vertical direction, and links, each coupled with the respective top lever and with the respective hydraulic support.

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Description

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Claims

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Claims data not available

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Legal Events

 

• FP1989
• LAPS1989
• STCH1989
• REMI1988
• I1985
• AS1984
• F1982
• PD1982

Date	Code	Event	Description
Apr 02, 1989	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Apr 02, 1989
Apr 02, 1989	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Apr 02, 1989	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Nov 01, 1988	REMI	MAINTENANCE FEE REMINDER MAILED
Apr 02, 1985	I	Issuance
Nov 26, 1984	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:SPEKTOR, JURY N.;GAPONOV, VALERY M.;MASOVICH, FELIX Z.;REEL/FRAME:004346/0013 Owner name: GOSUDARSTVENNY PROEKTNO-KONSTRUKTORSKY I EXPERIMEN Effective Date: Nov 26, 1984
Oct 19, 1982	F	Filing
Oct 19, 1982	PD	Priority Date