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:
May. 22, 1990
Filed:
Dec. 09, 1988
Applicant:
Inventor:
Dennis D Leatherman, Pittsburgh, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
503214 ; 4283213 ; 428331 ; 428914 ; 503219 ; 503225 ; 503226 ;
Abstract
The front side of at least one receptor sheet of a pressure-sensitive multi-part record unit comprises microporous material comprising a matrix consisting essentially of substantially water-insoluble thermoplastic organic polymer, a large proportion of finely divided, water-insoluble siliceous particles, and interconnecting pores.