Granted Patent
Utility
US 5,195,685 · App. 07/772,280
Granulator for waste material
Inventor:
Thomas J. Dumaine
Patented Case
View Patent ↗
Granted: Mar 23, 1993
Filed: Oct 7, 1991
Inventor
Thomas J. Dumaine
Assignee (at issue)
Mediclean Technology, Inc.
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.