Granted Patent
Utility
US 6,470,149 · App. 09/642,811
Distance measuring apparatus
Inventors:
Naoto Nakahara, Norio Numako
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Aug 22, 2000
Inventors
Naoto Nakahara
Norio Numako
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.