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. 17, 1991
Filed:
Jan. 02, 1991
Applicant:
Inventor:
Robert W Olsen, Washington, NJ (US);
Assignee:
Construction Specialties, Inc., Cranford, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06B / ;
U.S. Cl.
CPC ...
52473 ; 49 91 ; 981211 ; 981212 ;
Abstract
The cross sections of louver blades are located exclusively within zones defined primarily by concentric arcs configured to maintain a substantially equal spacing between the boundaries of the zones of adjacent blades throughout the width of the louver.