Granted Patent
Utility
US 4,421,682 · App. 06/251,667
Heating of proteinaceous liquids
Inventors:
Richard H. Edwards, George O. Kohler
Patented Case
View Patent ↗
Granted: Dec 20, 1983
Filed: Apr 6, 1981
Inventors
Richard H. Edwards
George O. Kohler
Assignee (at issue)
The United States of America, as represented by the Secretary of Agriculture
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.