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. 22, 1979
Filed:
Feb. 07, 1978
Applicant:
Inventor:
Charles W Neefe, Big Spring, TX (US);
Assignee:
Neefe Optical Laboratory, Inc., Big Spring, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
264-1 ; 264313 ; 264334 ; 425808 ;
Abstract
A method of making plastic lenses by casting a liquid monomer in a container having the required optical curve on the bottom of the container, polymerizing the monomer to form a solid having an optical surface formed within the container and cutting a second optical surface on the solid lens material with the container supporting the lens material during the cutting and polishing operation. Removing the lens from the casting container by applying force against the sides of the container to distort the container and stretching the surface to effect the release of the lens.