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:
Nov. 28, 2000
Filed:
Feb. 11, 1999
Applicant:
Inventors:
Wayne E Isbell, Dallas, TX (US);
Robert E Wallace, Garland, TX (US);
Assignee:
Litton Systems, Inc., Woodland Hills, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ; F14G / ;
U.S. Cl.
CPC ...
359419 ; 359424 ; 359428 ; 359513 ; 359399 ; 33246 ; 33298 ;
Abstract
The invention comprises a protective window for an optical sight. In accordance with one embodiment of the invention, an optical sight (20) may comprise an optical component (182, 300) transmitting an image of a scene. A protective window (180, 430) may be disposed approximate to an internal side of the optical component (180, 300) to obstruct dirt from contacting the internal side of the optical component.