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:
Oct. 18, 1977
Filed:
Jun. 17, 1976
Applicant:
Inventor:
Arthur H Shoemaker, East Aurora, NY (US);
Assignee:
American Optical Corporation, Southbridge, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
3501 / ; 350220 ;
Abstract
A four-member microscope objective having a numerical aperture of 0.25 provides a magnification of substantially 10.times. and a substantially flat image field of 24mm in combination with a telescope objective as described in U.S. Pat. No. 3,355,234 and a typical 10.times. eyepiece.