Granted Patent
Utility
US 4,246,972 · App. 06/049,566
Motor grader and positioning mechanism for drawbar thereof
Inventors:
Rudolph Halmosi, Karl W. Schneider
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Jun 18, 1979
Inventors
Rudolph Halmosi
Karl W. Schneider
Assignee (at issue)
General Motors LLC
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.