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:
May. 13, 1980
Filed:
Apr. 24, 1978
Thomas F Burke, Wayland, MA (US);
Donald H Walker, Winchester, MA (US);
Avery International Corporation, San Marino, CA (US);
Abstract
Retroreflective sheeting having a plurality of retroreflective cube corner prisms distributed over one of its surfaces is described. The prisms are disposed in a planar array having a plurality of zones of prisms having differing angular orientations such that the zones have differing retroreflective brightness when illuminated by a light beam at a high angle of incidence. The zones are small enough to be substantially unresolvable by the unaided human eye at the expected viewing distances, so that the sheeting appears to have uniform retroreflective brightness when viewed at a high angle of incidence.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile