Granted Patent
Utility
US 5,076,027 · App. 07/631,382
Process for abrasive flow machining using multiple cylinders
Inventor:
Lawrence J. Rhoades
Patented Case
View Patent ↗
Granted: Dec 31, 1991
Filed: Dec 20, 1990
Inventor
Lawrence J. Rhoades
Assignee (at issue)
Extrude Hone GmbH
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.