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. 04, 1997
Filed:
Aug. 26, 1994
Edward Podosek, Wilbraham, MA (US);
Avery Dennison Corporation, Pasadena, CA (US);
Abstract
A ring binder which is easy to grasp at the spine and is capable of accommodating a great number of loose-leaf sheet. According to one embodiment, such a ring binder comprises a stiffener assembly, the stiffener assembly having an interior surface and an exterior surface and comprising a front cover stiffener panel, a rear cover stiffener panel and a flexible backing. The front and rear cover stiffener panels are spaced apart from one another and are interconnected by the flexible backing, the stiffener assembly being devoid of any stiffeners disposed between the front and rear cover stiffener panels. An interior surface sheet, preferably of canvas material, is secured to the interior surface of the stiffener assembly, and an exterior surface sheet, preferably of canvas material, is secured to the exterior surface of the stiffener assembly. A ring assembly is secured to the rear cover stiffener panel. In this manner, the surface sheets and the stiffener assembly cooperatively define a binder cover having front and rear covers interconnected by a flexible spine, the flexible spine being conformable about the ring assembly.