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. 30, 1976
Filed:
Aug. 29, 1975
Applicant:
Inventors:
Masayoshi Ozawa, Machida, JA;
Minoru Machida, Tokyo, JA;
Yoichi Kawabata, Tokyo, JA;
Mitsuaki Seki, Tokyo, JA;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
235156 ;
Abstract
A calculator of the type having parenthesis keys, wherein there is provided means for performing an operation on an expression containing an exponent term or terms by touching keys in the left-to-right sequence as the expression reads.
Quick Actions:
Ozawa, Masayoshi. (1976). Electronic calculator having an exponentiation function (U.S. Patent No. 3995148). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3995148
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile