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:
Sep. 07, 1976
Filed:
Sep. 02, 1975
Applicant:
Inventors:
Alberto de Lama, Chicago, IL (US);
Joseph Cano, Chicago, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B44D / ;
U.S. Cl.
CPC ...
160378 ; 3810291 ;
Abstract
A rigid non-expandable frame for holding an artist's canvas or the like, has permanently coupled thereto a plurality of independently operable clamps. The clamps have guides adapted to slide along the frame and include adjustable jaws for grasping the canvas. Each clamp includes a manually operable member with one end positioned against the frame for moving the clamp inward of the frame to selectively permit localized stretching and contraction of the canvas.