Granted Patent
Utility
US 4,469,444 · App. 06/513,906
Mixing and degassing apparatus for viscous substances
Inventors:
Paul Gmeiner, Gustav Oesch
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Jul 14, 1983
Inventors
Paul Gmeiner
Gustav Oesch
Assignee (at issue)
Micafil 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.