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:
May. 24, 1994
Filed:
Aug. 31, 1990
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379 57 ; 379 75 ; 3642222 ; 3642223 ; 3642272 ; 3649188 ;
Abstract
A method and system is provided for automatically trading of items such as stocks with improved security. After receiving an initial identifying contact from a contractor, a trader will contact the contractor with a different communication device from the initial contact with confirmation information that was stored in association with a contractor first identifying code. The contractor must then reconfirm the fairness of the trading data using at least a portion of the confirmation information.