Granted Patent
Utility
US 4,337,546 · App. 06/144,192
Floor polisher support
Inventor:
Paul E. Phillips
Patented Case
View Patent ↗
Granted: Jul 6, 1982
Filed: Apr 25, 1980
Inventor
Paul E. Phillips
Assignee (at issue)
MCGRAW-EDISON COMPANY
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.