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:
Sep. 16, 1980
Filed:
Apr. 10, 1978
Applicant:
Inventors:
David L Smith, Atlanta, GA (US);
John M Jamieson, Atlanta, GA (US);
Assignee:
Computer Microfilm International Corporation, Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
235 / ; 209564 ; 235 / ; 235 / ;
Abstract
A film card selection device for use in an automatic microfilm display apparatus is provided with a switch for sensing that a film card has been selected. A counter counts the number of drive gear teeth passing a selected point after selection of a film card so that the apparatus can be stopped with the selected card in position for retrieval.
Smith, David. (1980). Card selector device (U.S. Patent No. 4223212). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4223212
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile