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:
Sep. 08, 1992
Filed:
Apr. 03, 1991
Applicant:
Inventor:
Alec D Keith, Boalsburg, PA (US);
Assignee:
Zetachron, State College, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128743 ; 604304 ; 206823 ;
Abstract
An allergic response indicator is provided which comprises a cutaneous three dimensional polymeric sheet capable of self-adherence to the epidermis of a subject and containing an indicator compound distributed throughout said cutaneous three dimensional polymeric sheet which, when applied to said epidermis, is released thereto over the period of application, whereby upon release of said indicator compound an allergic reaction is manifested by visual signs of skin irritation at the site of application upon the removal of said allergic response indicator.