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. 18, 1986
Filed:
Sep. 07, 1983
Applicant:
Inventors:
Martin W Baskerville, Towcester, GB;
William R Maltman, St. Helens, GB;
Stephen N Oliver, Penryncock, GB;
Assignee:
The Plessey Company PLC, Ilford, GB;
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
264-14 ; 264-11 ; 264 22 ; 264234 ; 350354 ; 351163 ;
Abstract
A method is disclosed for manufacturing transparent plastic articles, primarily plano or opthalmic photoreactive lenses, which comprises incorporating fulgides or fulgimides containing an adamantylidene group in plastics casting or moulding compositions or preformed plastics articles and converting the fulgide or fulgimide in situ into a form in which it confers on the article the property of darkening in the presence of sunlight and fading in its absence.
Baskerville, Martin. (1986). Photochromic compounds and their use in photoreactive lenses (U.S. Patent No. 4576766). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4576766
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile