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. 30, 2004
Filed:
Feb. 07, 2001
Applicant:
Inventor:
Gerald J Henderson, Plano, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09B 9/02 ;
U.S. Cl.
CPC ...
G09B 9/02 ;
Abstract
An electronic abacus calculator comprising an electronic abacus display screen in combination with a numeric display and an electronic keyboard calculator. The invention also comprises a personal abacus, which comprises a mechanical abacus or an electronic abacus calculator or both in a suitable carrying case, which is designed to open and make the abacus available for use in the case.
Henderson, Gerald. (2004). Abacus calculator (U.S. Patent No. 6712614). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6712614
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