Granted Patent
Utility
US 5,528,430 · App. 08/301,773
Rotatable ring supporting mechanism in lens barrel
Inventor:
Takuji Hamasaki
Patented Case
View Patent ↗
Granted: Jun 18, 1996
Filed: Sep 7, 1994
Inventor
Takuji Hamasaki
Assignee (at issue)
Asahi Kogaku Kogyo Kabushiki Kaisha
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.