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:
Dec. 31, 1996
Filed:
Oct. 26, 1994
Applicant:
Inventors:
Martin A Mainster, Leawood, KS (US);
Janet L Crossman, Bellevue, WA (US);
Robert D Johnson, Bellevue, WA (US);
Assignee:
Ocular Instruments, Inc., Bellevue, WA (US);
Primary Examiner:
Int. Cl.
CPC ...
A61B / ; A61B / ; G02B / ;
U.S. Cl.
CPC ...
351219 ; 351205 ; 359689 ; 359708 ;
Abstract
An indirect ophthalmoscopy lens (10) comprises two or more elements (16, 30). The elements (16, 30) are movable by the physician relative to each other to vary the magnification provided in an aerial image (I) of the fundus.