Granted Patent
Utility
US 5,484,111 · App. 08/251,174
Hammers for hammer mills
Inventors:
John Dorscht, Patrick Hogan
Patented Case
View Patent ↗
Granted: Jan 16, 1996
Filed: May 31, 1994
Inventors
John Dorscht
Patrick Hogan
Assignee (at issue)
Portec, 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.