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. 12, 1988
Filed:
Aug. 12, 1985
Applicant:
Inventors:
James M Avery, Austin, TX (US);
Madhu C Patel, Wichita, KS (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235380 ; 235379 ; 235441 ; 235486 ; 235492 ;
Abstract
A portable transaction processing calculator has a keyboard and a display window along with slots for holding at least a pair of credit cards. One of the cards includes storage means therein and is electrically connected with the calculator, and another card has optical or other readable data thereon and readable by optical or other equipment. A selector switch on the calculator selects one of four different operations.