Granted Patent
Utility
US 5,079,036 · App. 07/558,941
Method of inhibiting freezing and improving flow and handleability characteristics of solid, particulate materials
Inventors:
Donald Carroll Roe, David M. Polizzotti
Patented Case
View Patent ↗
Granted: Jan 7, 1992
Filed: Jul 27, 1990
Inventors
Donald Carroll Roe
David M. Polizzotti
Assignee (at issue)
Betz Laboratories, 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.