Granted Patent
Utility
US 6,560,048 · App. 09/670,406
Prism having two inner surfaces and outer shape regarded as plane parallel plate
Inventors:
Shinji Okamori, Shinsuke Shikama
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Sep 28, 2000
Inventors
Shinji Okamori
Shinsuke Shikama
Assignee (at issue)
MITSUBISHI ELECTRIC 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.