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:
Mar. 27, 1979
Filed:
Apr. 25, 1977
Applicant:
Inventor:
Nobuyuki Baba, Tokyo, JP;
Assignee:
Gakken Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350135 ; 350133 ;
Abstract
A stereo-viewer and a stereo-sheet for use therewith, includes a set of oculars disposed in a horizontal plane in a case and separated from each other by the distance between the eyes of the user. The case has an insertion slot for accommodating the stereo-sheet which passes in the vertical direction through the case. A frame feeding device is connected to the case for moving the stereo-sheet in the vertical direction. No elements are required to change the direction of the path of the light in a vertical direction.
Baba, Nobuyuki. (1979). Stereo-viewer and stereo-sheet to be used for the same (U.S. Patent No. 4146303). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4146303
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile