The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2003
Filed:
Apr. 14, 2000
Applicant:
Inventors:
Gareth Rhys Collins, West Midlands, GB;
Christopher Raymond Jones, West Midlands, GB;
Robert Eric Talbot, Staffordshire, GB;
Jane Williams, Leicester, GB;
Mohsen Zakikhani, Birmingham, GB;
Assignee:
Rhodia Consumer Specialties Limited, West Midlands, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01C 3/00 ; C14C 1/300 ; C14C 1/00 ;
U.S. Cl.
CPC ...
D01C 3/00 ; C14C 1/300 ; C14C 1/00 ;
Abstract
Leather is tanned by cross-linking collagen with tris(hydroxymethyl)phosphine or a condensate of a tetrakis(hydroxymethyl)phosphonium salt with an amide or amine in a main tannage or retannage.