Granted Patent
Utility
US 6,498,948 · App. 09/641,885
Endoscope system
Inventors:
Ryo Ozawa, Tetsuya Nakamura, Tetsuya Utsui, Shinsuke Okada, Masaru Eguchi, Koichi Furusawa
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: Aug 18, 2000
Inventors
Ryo Ozawa
Tetsuya Nakamura
Tetsuya Utsui
Shinsuke Okada
Masaru Eguchi
Koichi Furusawa
Assignee (at issue)
Pentax Corporation
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.