Granted Patent
Utility
US 5,738,749 · App. 08/271,320
Method of using a variable force compactor
Inventors:
Michael N. Grimshaw, James R. Hecht
Patented Case
View Patent ↗
Granted: Apr 14, 1998
Filed: Jul 6, 1994
Inventors
Michael N. Grimshaw
James R. Hecht
Assignee (at issue)
Cincinnatti Milacron 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.