Granted Patent
Utility
US 5,597,347 · App. 08/386,002
Sander vacuum housing and pad frame system
Inventors:
Donald R. Bosten, John Robert Kriaski, Randy G. Cooper
Patented Case
View Patent ↗
Granted: Jan 28, 1997
Filed: Feb 9, 1995
Inventors
Donald R. Bosten
John Robert Kriaski
Randy G. Cooper
Assignee (at issue)
Porter-Cable 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.