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:
Aug. 15, 1995
Filed:
Jun. 30, 1993
Applicant:
Inventor:
John Kwok, Holden, MA (US);
Assignee:
Camelot Technologies Inc., Leominster, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428339 ; 428500 ; 428520 ; 428 366 ;
Abstract
A water soluble laminate may be prepared comprising one or more relatively water insoluble layers of polymers such as polyvinyl alcohol or crosslinked polyvinyl alcohol and one or more relatively more water soluble layers such as linear uncrosslinked sulphonated vinylaromatic polymers.
Kwok, John. (1995). Soluble laminates (U.S. Patent No. 5441805). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5441805
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile