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. 25, 1980
Filed:
Aug. 30, 1978
Applicant:
Inventor:
John C Chang, Naperville, IL (US);
Assignee:
Wallace Business Forms, Inc., Hillside, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05C / ; B05C / ;
U.S. Cl.
CPC ...
427 541 ; 106 21 ; 20415916 ; 20415923 ; 20415924 ; 282 275 ; 427151 ; 427288 ; 428211 ; 428307 ; 428411 ; 428914 ;
Abstract
A method of desensitizing carbonless paper by subjecting N-vinyl pyrrolidone and a free radical copolymerizable compound having at least one terminal ethylenic group per molecule in situ to ultra violet radiation.