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. 23, 1980
Filed:
Jun. 12, 1978
Applicant:
Inventor:
John D Lytle, San Jose, CA (US);
Assignee:
M.U. Engineering & Manufacturing, Inc., Mountain View, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
350189 ; 3501 / ; 350223 ;
Abstract
An all plastic lens assembly having a lens cell or housing and at least four separate airspaced lens elements mounted in the cell or housing, the lens elements are formed of plastic and at least one of the lens elements has an aspheric surface.
Lytle, John. (1980). All plastic projection lens assembly with aspheric surface (U.S. Patent No. 4240701). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4240701
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile