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:
Mar. 05, 1996
Filed:
Dec. 08, 1994
Applicant:
Inventor:
Chung L Tang, Ithaca, NY (US);
Assignee:
Ithaca Research Corporation, Ithaca, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359513 ; 359507 ;
Abstract
A method and apparatus for protecting polished surfaces of optical crystals includes placing a thin film of index-matching liquid between the polished surface and an optical flat, and hermetically sealing the liquid in place.