Granted Patent
Utility
US 4,482,193 · App. 06/483,963
Roadable track assembly
Inventors:
Roger L. Boggs, Andrew J. Tonsor
Patented Case
View Patent ↗
Granted: Nov 13, 1984
Filed: Apr 11, 1983
Inventors
Roger L. Boggs
Andrew J. Tonsor
Assignee (at issue)
Caterpillar Tractor Co.
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.