Granted Patent
Utility
US 5,372,871 · App. 08/028,804
Circuit board for optical element
Inventors:
Mitsuo Takase, Nobuhiro Fukuda, Toshihiro Dodo
Patented Case
View Patent ↗
Granted: Dec 13, 1994
Filed: Mar 10, 1993
Inventors
Mitsuo Takase
Nobuhiro Fukuda
Toshihiro Dodo
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.