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:
Nov. 26, 1991
Filed:
Nov. 05, 1990
Applicant:
Inventors:
Edward W Cooper, Scarborough, CA;
Orlando R Guerrieri, Pickering, CA;
Assignee:
Acco World Corporation, Wheeling, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B42F / ;
U.S. Cl.
CPC ...
402 38 ; 402 41 ;
Abstract
A loose-leaf binder having a casing and prong-carrying spring plates and having a mechanism for readily locking and unlocking the prongs through use of a trigger including pivot projections for pivoting on and in plate apertures. Locking is accomplished by lever lugs engaging casing blisters.