Granted Patent
Utility
US 5,946,501 · App. 08/916,046
Waterproof and/or water-resistant camera
Inventor:
Masahiro Hayakawa
Patented Case
View Patent ↗
Granted: Aug 31, 1999
Filed: Aug 21, 1997
Inventor
Masahiro Hayakawa
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.