Granted Patent
Utility
US 6,209,232 · App. 09/051,514
Construction machine with function of measuring finishing accuracy of floor face smoothed thereby
Inventors:
Tomoaki Ono, Shoji Tozawa
Patented Case
View Patent ↗
Granted: Apr 3, 2001
Filed: Apr 10, 1998
Inventors
Tomoaki Ono
Shoji Tozawa
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.