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:
Jan. 20, 1981
Filed:
Nov. 13, 1979
Applicant:
Inventor:
James F Nester, Ridgefield, CT (US);
Assignee:
The Perkin-Elmer Corporation, Norwalk, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; B29D / ;
U.S. Cl.
CPC ...
156 74 ; 156247 ; 156631 ; 156668 ; 264259 ; 264299 ; 264334 ; 264340 ;
Abstract
Polymer membranes are formed by spinning a monomer solution on a smooth surface of a plate and heat curing the solution to form a polymer film. A carrier element is attached to the film and together they are immersed in a suitable chemical composition to react with the bond between the film and plate. The assembly is then immersed in water to cause the plate to fall away from the film.