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. 04, 1976
Filed:
Nov. 04, 1974
Applicant:
Inventors:
Robert R Rice, St. Louis, MO (US);
Louis B Allen, Jr, St. Louis, MO (US);
Gordon H Burkhart, St. Louis, MO (US);
Herbert G Koenig, Jr, St. Charles, MO (US);
Assignee:
McDonnell Douglas Corporation, St. Louis, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
423312 ; 156 16 ; 156 17 ; 3501 / ; 350150 ; 423593 ;
Abstract
An electrooptic crystal having improved characteristics including an improved light extinction ratio and a process of making same including etching certain portions of the lateral surfaces thereof so as to relieve surface and other strain in the crystal.