Granted Patent
Utility
US 4,016,936 · App. 05/571,118
Motor grader having improved guide shoes for circle-mounted implement
Inventors:
Gene B. Easterling, Joseph L. Strabala
Patented Case
View Patent ↗
Granted: Apr 12, 1977
Filed: Apr 24, 1975
Inventors
Gene B. Easterling
Joseph L. Strabala
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.