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. 29, 1992
Filed:
Sep. 27, 1991
Applicant:
Inventor:
John J Zayhowski, Pepperell, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
5128 / ; 5128 / ; 51323 ;
Abstract
A method of producing a desired surface on an optical material including producing a plurality of elements of the optical material such that each element has an upper and a lower surface, arranging the plurality of elements such that adjacent elements are separated by an interstitial material having a hardness different from the optical material being processed, processing the surfaces of the elements and removing the interstitial material.