Granted Patent
Utility
US 5,196,220 · App. 07/527,453
Foam-stabilized malt beverage
Inventors:
Kenneth Clare, Margaret A. Lawson
Patented Case
View Patent ↗
Granted: Mar 23, 1993
Filed: May 23, 1990
Inventors
Kenneth Clare
Margaret A. Lawson
Assignee (at issue)
MERCK & CO., 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.