Granted Patent
Utility
US 3,936,212 · App. 05/359,740
Ride-type surface-working machines
Inventors:
Orville H. Holz, Sr., Norbert J. Holz
Patented Case
View Patent ↗
Granted: Feb 3, 1976
Filed: May 14, 1973
Inventors
Orville H. Holz, Sr.
Norbert J. Holz
Assignee (at issue)
Orville H. Holz, Jr.
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.