Granted Patent
Utility
US 5,669,843 · App. 08/629,499
Actuator
Inventors:
Brian Bolton, Yoshio Yuyama, Katsutoshi Akutagawa, Hiromi Matsuura
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Apr 10, 1996
Inventors
Brian Bolton
Yoshio Yuyama
Katsutoshi Akutagawa
Hiromi Matsuura
Assignee (at issue)
U-SHIN LTD.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.