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. 29, 1989
Filed:
May. 02, 1988
Applicant:
Inventors:
Donald L Griffin, West Chester, PA (US);
Ralph E Pfister, Wayne, PA (US);
Assignee:
Barriergen, Inc., Malvern, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428336 ; 63-11 ; 424 78 ; 4272556 ;
Abstract
Hypoallergenic jewelry and a method of making the same is achieved by providing vapor deposition of unsubstituted and substituted linear homopolymers and copolymers of poly(p-xylylene) on the jewelry having a thickness in the range of about 0.5 microns to about 25 microns. A new use of preventing allergic reactions when jewelry is worn is achieved by providing the jewelry with a poly(p-xylylene) polymer coating which provides a hypoallergenic surface on the jewelry.