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:
Jun. 11, 2019
Filed:
Apr. 13, 2017
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04B 1/18 (2006.01); G04B 1/16 (2006.01); G04B 1/14 (2006.01);
U.S. Cl.
CPC ...
G04B 1/18 (2013.01); G04B 1/145 (2013.01); G04B 1/16 (2013.01);
Abstract
A timepiece mainspring is accommodated inside a barrel, an inner end thereof is fixed to a barrel arbor included in the barrel, and an outer end thereof engages with an inner wall of the barrel. The timepiece mainspring includes a helical portion wound in a Bernoulli curve shape from the inner end in a free state having no applied load.
Nakata, Keisuke. (2019). Timepiece mainspring, timepiece drive device, timepiece movement, timepiece, and manufacturing method of timepiece mainspring (U.S. Patent No. 10317842). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10317842
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile