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.:

US 8000010 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 16, 2011

Filed:

Jul. 31, 2007
Applicant:

David Lynn Crandall, Idaho Falls, ID (US);

Inventor:

David Lynn Crandall, Idaho Falls, ID (US);

Assignee:

Battelle Energy Alliance, LLC, Idaho Falls, ID (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

Sighting optics include a front sight and a rear sight positioned in a spaced-apart relation. The rear sight includes an optical element having a first focal length and a second focal length. The first focal length is selected so that it is about equal to a distance separating the optical element and the front sight and the second focal length is selected so that it is about equal to a target distance. The optical element thus brings into simultaneous focus for a user images of the front sight and the target.


Find Patent Forward Citations

Crandall, David. (2011). Sighting optics including an optical element having a first focal length and a second focal length and methods for sighting (U.S. Patent No. 8000010). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8000010

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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