Granted Patent
Utility
US 6,098,322 · App. 09/101,845
Control device of construction machine
Inventors:
Shoji Tozawa, Tomoaki Ono
Patented Case
View Patent ↗
Granted: Aug 8, 2000
Filed: Jul 20, 1998
Inventors
Shoji Tozawa
Tomoaki Ono
Assignee (at issue)
Shin Caterpillar Mitsubishi Ltd.
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.