Granted Patent
Utility
US 5,842,863 · App. 08/909,681
Device for containing excess abrasive material
Inventors:
Craig Bruns, Mark S. Fernwood
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Aug 12, 1997
Inventors
Craig Bruns
Mark S. Fernwood
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.