Granted Patent
Utility
US 4,155,657 · App. 05/885,119
Continuous mixer for preparing emulsions
Inventors:
Gordon H. King, Michel T. Zalzal
Patented Case
View Patent ↗
Granted: May 22, 1979
Filed: Mar 10, 1978
Inventors
Gordon H. King
Michel T. Zalzal
Assignee (at issue)
Chemed Corporation
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.