Granted Patent
Utility
US 6,118,601 · App. 09/176,960
Floating lens barrel, lens barrel, and a common lens barrel system
Inventors:
Makoto Iikawa, Takuji Hamasaki
Patented Case
View Patent ↗
Granted: Sep 12, 2000
Filed: Oct 22, 1998
Inventors
Makoto Iikawa
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.