Granted Patent
Utility
US 4,603,621 · App. 06/778,909
Beverage-making device
Inventor:
Melvin F. Roberts
Patented Case
View Patent ↗
Granted: Aug 5, 1986
Filed: Sep 23, 1985
Inventor
Melvin F. Roberts
Assignee (at issue)
Bloomfield Industries, 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.