Granted Patent
Utility
US 5,201,474 · App. 07/562,757
Coffee grinder
Inventor:
William E. Midden
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Aug 3, 1990
Inventor
William E. Midden
Assignee (at issue)
Bunn-O-Matic 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.