Granted Patent
Utility
US 5,535,532 · App. 08/350,537
Excavator control apparatus for shovel-type construction equipment
Inventors:
Satoshi Fujii, Shoji Tozawa, Tomoaki Ono
Patented Case
View Patent ↗
Granted: Jul 16, 1996
Filed: Dec 7, 1994
Inventors
Satoshi Fujii
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.