Granted Patent
Utility
US 4,389,800 · App. 06/351,502
Land leveling scrapers
Inventor:
Larry Goby
Patented Case
View Patent ↗
Granted: Jun 28, 1983
Filed: Mar 1, 1982
Inventor
Larry Goby
Assignee (at issue)
Reynolds Manufacturing Company
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.