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:
Jan. 27, 1981
Filed:
Dec. 20, 1978
Applicant:
Inventors:
Masao Nohda, Yokohama, JP;
Kazuo Morohashi, Yokohama, JP;
Assignee:
Nippon Kogaku K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
356124 ;
Abstract
A projection type lens meter comprises a projection lens system consisting of a positive lens group and a negative lens group mutually separated by a large air gap, wherein the projecting light beam having passed through said two lens groups is made to pass through said air gap between said lens groups.
Nohda, Masao. (1981). Projection type lens meter (U.S. Patent No. 4247200). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4247200
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile