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:
Dec. 02, 1980
Filed:
Oct. 23, 1978
Applicant:
Inventor:
Charles W Wyckoff, Needham, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 97 ; 350106 ; 404 14 ;
Abstract
This disclosure is concerned with providing a marker strip for attachment to roadways and other surfaces, comprising an upper layer of spaced transverse prisms and a lower layer of retroreflective sheeting, providing direction color discrimination, where desired, and substantially constant brightness of light retroreflection with distance over wide angles of incident light upon the strip.
Wyckoff, Charles. (1980). Direction-indicating surface marker strip for roadways and the like (U.S. Patent No. 4236788). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4236788
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile