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. 21, 1989
Filed:
Oct. 05, 1987
Applicant:
Inventor:
Richard L Gross, Fox River Grove, IL (US);
Assignee:
Wilson Jones Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B42F / ; B42F / ; B42F / ;
U.S. Cl.
CPC ...
402 38 ; 402 37 ; 402 41 ;
Abstract
A loose-leaf sheet binder mechanism with a case, hinge plates, ring halves and trigger lever to operate the hinge plates for opening and closing the ring halves. The case has first lock means on it in the form of a raised or dimpled member and the trigger lever has complementary second lock means on it.