Granted Patent
Utility
US 5,582,730 · App. 08/324,651
Coffee filter unit having a filter basket and a detachable distributing cover
Inventor:
Max Hugentobler
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: Oct 18, 1994
Inventor
Max Hugentobler
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.