Granted Patent
Utility
US 6,243,914 · App. 09/366,941
Sprayless surface cleaner
Inventor:
Roy Studebaker
Patented Case
View Patent ↗
Granted: Jun 12, 2001
Filed: Aug 4, 1999
Inventor
Roy Studebaker
Assignee (at issue)
Hydramaster, LLC
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.