Granted Patent
Utility
US 4,817,520 · App. 07/074,213
Compactor with control apparatus for offsetting operation between a gate and a ram
Inventors:
Ronald L. Brown, James K. Robbins, Kent Spiers
Patented Case
View Patent ↗
Granted: Apr 4, 1989
Filed: Jul 16, 1987
Inventors
Ronald L. Brown
James K. Robbins
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.