Granted Patent
Utility
US 4,488,749 · App. 06/414,610
Spreader assembly
Inventor:
Richard F. Voelz
Patented Case
View Patent ↗
Granted: Dec 18, 1984
Filed: Sep 3, 1982
Inventor
Richard F. Voelz
Assignee (at issue)
Renner 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.