Granted Patent
Utility
US 5,209,024 · App. 07/780,338
Inexpensive abrasive blast wheel
Inventors:
James H. Carpenter, Horace Bailey
Patented Case
View Patent ↗
Granted: May 11, 1993
Filed: Oct 22, 1991
Inventors
James H. Carpenter
Horace Bailey
Assignee (at issue)
Pangborn 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.