Granted Patent
Utility
US 6,402,392 · App. 09/296,079
Ferrule tubular body and ferrule
Inventors:
Mitsuo Yarita, Tomohiro Shimada
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Apr 21, 1999
Inventors
Mitsuo Yarita
Tomohiro Shimada
Assignee (at issue)
SEIKO INSTRUMENTS 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.