Granted Patent
Utility
US 4,531,787 · App. 06/245,235
Debris deflector for endless track system
Inventors:
Cullen P. Hart, Wayne A. Klopfenstein
Patented Case
View Patent ↗
Granted: Jul 30, 1985
Filed: Dec 2, 1980
Inventors
Cullen P. Hart
Wayne A. Klopfenstein
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.