Granted Patent
Utility
US 4,858,663 · App. 07/202,102
Plate joiner having a quiet drive
Inventors:
Donald R. Bosten, Randy G. Cooper
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: Jun 3, 1988
Inventors
Donald R. Bosten
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.