Granted Patent
Utility
US 4,860,646 · App. 07/013,079
Compactor with hydraulic dwell and method
Inventor:
Kent Spiers
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Feb 10, 1987
Inventor
Kent Spiers
Assignee (at issue)
Marathon Partners
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.