Granted Patent
Utility
US 5,315,345 · App. 07/886,402
Power zoom lens and camera system having same
Inventors:
Masahiro Kawasaki, Hiroyuki Takahashi, Yoshinari Tanimura
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: May 21, 1992
Inventors
Masahiro Kawasaki
Hiroyuki Takahashi
Yoshinari Tanimura
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.