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:
Jan. 23, 1979
Filed:
Aug. 11, 1977
Applicant:
Inventors:
Emil W Deeg, Woodstock, CT (US);
Edward A Travnicek, Southbridge, MA (US);
Assignee:
American Optical Corporation, Southbridge, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02C / ; G02C / ; G02C / ;
U.S. Cl.
CPC ...
351 41 ; 351 83 ; 351 92 ; 351154 ;
Abstract
Warpage-free spectacles comprised of plastic lenses and plastic frames wherein the frames are constructed of materials having the same or lower tensile elastic modulus and/or the same coefficient of thermal expansion as the lens material.
Quick Actions:
Deeg, Emil. (1979). All plastic spectacles (U.S. Patent No. 4135792). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4135792
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile