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

Patent Owner(s)

Patent Owner	Address
COMMONWEATLTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION	LIMESTONE AVENUE CAMPBELL AUSTRALIAN CAPITAL TERRITORY 2601

International Classification(s)

• C14C:CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g....

• 1993 Application Filing Year
• C14C Class
• 18 Applications Filed
• 7 Patents Issued To-Date
• 38.89 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Huynh, Chi P	Hawthorn, AU	1	8
# of filed Patents : 1 Total Citations : 8
Milligan, Brian	North Balwyn, AU	4	27
# of filed Patents : 4 Total Citations : 27
Montgomery, Kenneth C	North Warrandyte, AU	1	8
# of filed Patents : 1 Total Citations : 8
Pojer, Peter	North Caulfield, AU	1	8
# of filed Patents : 1 Total Citations : 8

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Patent Citation Ranking

• 8 Citation Count
• C14C Class

• 20 % this patent is cited more than
• 29 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: 5501708

Process for tanning hides and compounds for use therein

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Abstract

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An organic polyol ester of a polycarboxylic acid having formulae (Para) and/or (Meta) and/or (Ortho), wherein R.sub.6 is --(COOR.sub.1)x, or (I).sub.1 R.sub.7 is H; or R.sub.6 and R.sub.7 together for (II); R.sub.1 and R.sub.2 are hydrogen or --OR.sub.1 and --OR.sub.2 together form an anhydride (--0--) bond; x is an integer of 0 or 1; Z is an integer ranging from 1 to the number of hydroxy groups on the polyol and D is a polyol residue. Also disclosed are processes for the preparation of these polyol esters, a tanning composition comprising a metallic salt and a polyol ester, and a method of tanning using said composition.

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Description

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Claims

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Legal Events

 

• STCH2018
• FP2004
• LAPS2004
• REMI2003
• FEPP1999
• FPAY1999
• FEPP1998
• CC1996
• I1996
• AS1994
• F1993
• PD1991

Date	Code	Event	Description
Jan 26, 2018	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Mar 26, 2004	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Mar 26, 2004
Mar 26, 2004	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Oct 15, 2003	REMI	MAINTENANCE FEE REMINDER MAILED
Dec 03, 1999	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Sep 22, 1999	FPAY	FEE PAYMENT	year of fee payment: 4
Dec 06, 1998	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Sep 24, 1996	CC	CERTIFICATE OF CORRECTION
Mar 26, 1996	I	Issuance
Mar 04, 1994	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:POJER, PETER;MONTGOMERY, KENNETH C.;HUYNH, CHI PHUONG;AND OTHERS;REEL/FRAME:006887/0799;SIGNING DATES FROM 19931012 TO 19931017 Owner name: COMMONWEATLTH SCIENTIFIC AND INDUSTRIAL RESEARCH O
Oct 07, 1993	F	Filing
Apr 09, 1991	PD	Priority Date