Granted Patent
Utility
US 4,878,802 · App. 07/160,617
Machine for collecting ground particles and the like
Inventors:
Loren F. Hansen, Donald J. Huber, Joseph J. Oliver
Patented Case
View Patent ↗
Granted: Nov 7, 1989
Filed: Feb 26, 1988
Inventors
Loren F. Hansen
Donald J. Huber
Joseph J. Oliver
Assignee (at issue)
Outboard Marine Corporation
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.