Granted Patent
Utility
US 5,750,052 · App. 08/697,851
Foam control method
Inventors:
Paul R. Hart, Michael Dion
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Aug 30, 1996
Inventors
Paul R. Hart
Michael Dion
Assignee (at issue)
Betzdearborn, 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.