Granted Patent
Utility
US 4,845,802 · App. 07/149,622
Carpet cleaning apparatus
Inventors:
Matthew L. Miller, Jonathan Miller, Michael B. Woodhall, Mark F. Jennings
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Jan 28, 1988
Inventors
Matthew L. Miller
Jonathan Miller
Michael B. Woodhall
Mark F. Jennings
Assignee (at issue)
SHOP VAC 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.