Granted Patent
Utility
US 5,740,474 · App. 08/803,152
Apparatus for eliminating backlash in a zoom finder
Inventor:
Yuji Ogawa
Patented Case
View Patent ↗
Granted: Apr 14, 1998
Filed: Feb 19, 1997
Inventor
Yuji Ogawa
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.