Granted Patent
Utility
US 4,476,038 · App. 06/448,687
Composition for preventing or eliminating foam, especially in aqueous systems
Inventors:
Jurgen Fock, Hans-Ferdi Fink
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Dec 10, 1982
Inventors
Jurgen Fock
Hans-Ferdi Fink
Assignee (at issue)
Th. Goldschmidt. AG
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.