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

Patent Owner(s)

Patent Owner	Address
PLASTIC SYSTEMS INC A MA CORP	MARLBORO MA

International Classification(s)

• H05F:STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICIT....

• 1984 Application Filing Year
• H05F Class
• 25 Applications Filed
• 0 Patents Issued To-Date
• 0 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Cohen, Lenard	Brighton, MA	7	104
# of filed Patents : 7 Total Citations : 104
Gordon, Michael E	Wayland, MA	6	86
# of filed Patents : 6 Total Citations : 86

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Patent Citation Ranking

• 10 Citation Count
• H05F 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: 4551783

Heel grounding strap

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Abstract

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A grounding device for dissipating electrostatic voltages from the body of a wearer comprises: a pair of grounding straps of equal length joined together at right angles at their ends; a pair of fastener straps extending from the grounding strap ends at about 45.degree.; and an elongated tongue of conductive elastomer having a resistivity of about 1.times.10.sup.6 ohm per square, the tongue being connected to one of the grounding strap ends and the fastener at such end; the length of the grounding straps being selected such that with one strap against a shoe counter, the other extends under the heel of the shoe.

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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
• REMI1989
• CC1986
• I1985
• F1984
• AS1984

Date	Code	Event	Description
Nov 05, 1989	FP	EXPIRED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Nov 05, 1989
Nov 05, 1989	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Nov 05, 1989	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Jun 06, 1989	REMI	MAINTENANCE FEE REMINDER MAILED
Feb 18, 1986	CC	CERTIFICATE OF CORRECTION
Nov 05, 1985	I	Issuance
Oct 19, 1984	F	Filing
Oct 19, 1984	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:COHEN, LENARD;GORDON, MICHAEL E.;REEL/FRAME:004328/0247 Owner name: PLASTIC SYSTEMS, INC., MARLBORO, MA A MA CORP. Effective Date: Oct 19, 1984