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. 17, 1981
Filed:
Jun. 11, 1979
Applicant:
Inventor:
Takashi Segawa, Sakai, JP;
Assignee:
Shimano Industrial Company Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05G / ; B62M / ;
U.S. Cl.
CPC ...
745942 ;
Abstract
A gear crank for a bicycle comprises a crank shaft, a pair of crank arms and at least one chain gear, the crank shaft carrying at its one axial end one of the crank arms and a larger diameter portion onto which the chain gear is connected not-rotatably with respect to the crank shaft.
Segawa, Takashi. (1981). Gear crank for a bicycle (U.S. Patent No. 4300411). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4300411
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile