Granted Patent
Utility
US 5,830,313 · App. 08/355,284
Self-propelled floor covering scraper machine
Inventor:
Mark C. Smith
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Dec 12, 1994
Inventor
Mark C. Smith
Assignee (at issue)
Marcor Management, Inc.
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.