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:
Mar. 26, 1991
Filed:
Dec. 08, 1989
Applicant:
Inventors:
Patrick E Guire, Eden Prairie, MN (US);
Shawn G Dunkirk, Eden Prairie, MN (US);
Mark W Josephson, Richfield, MN (US);
Melvin J Swanson, Carver, MN (US);
Assignee:
Bio-Metric Systems, Inc., Eden Prairie, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
623 66 ; 623901 ; 623 11 ; 427-2 ; 436501 ;
Abstract
A method wherein surfaces are provided with desired characteristics of a polymer by covalently bonding polymer molecules to the surface through external activation of latent reactive groups carried by the polymer molecules is disclosed. The initial surfaces are free of chemical groups added by surface pretreatment and which chemically participate in the covalent bonding process.