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:
Nov. 06, 1989
Filed:
Oct. 25, 1987
Applicant:
Inventor:
Vaughn P McDowell, Fredericksburg, VA (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364900 ;
Abstract
A serial data word processing arrangement which can be used as a hand held security access control is disclosed. A microprocessor and electronically erasable and programmable red only memory chips (EEPROM), are used in a novel manner for storing security codes or other data resulting in a device that retains memory even after loss of power.