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:
Aug. 25, 1981
Filed:
Oct. 10, 1978
Nippon Contact Lens Manufacturing Ltd., Nagoya, JP;
Abstract
A method for manufacturing silicone lenses by use of a mold of specific structure is provided. The mold comprises a male section and a female section each of which has a mold surface plated with chromium, hard chromium or nickel. Both sections when joined together come into line contact with each other to define a mold cavity therebetween. With this type of mold, the method of the present invention is carried out in such a manner that a silicone resin material is cast into the mold cavity and the mold is heated in hot water until the material is cured. The cured material makes itself a finished contact lens of excellent quality.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile