Granted Patent
Utility
US 5,416,511 · App. 08/066,415
Observation apparatus for selectively providing color signals
Inventors:
Seiji Ishikawa, Masanori Hirai, Hajime Murakami, Masao Yamamoto
Patented Case
View Patent ↗
Granted: May 16, 1995
Filed: May 25, 1993
Inventors
Seiji Ishikawa
Masanori Hirai
Hajime Murakami
Masao Yamamoto
Assignees (at issue)
MITSUBISHI CHEMICAL CORPORATION
SCALAR, INC.
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.