Granted Patent
Utility
US 4,632,183 · App. 06/678,253
Insertion drive system for tree savers
Inventor:
Roderick D. McLeod
Patented Case
View Patent ↗
Granted: Dec 30, 1986
Filed: Dec 5, 1984
Inventor
Roderick D. McLeod
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.