Granted Patent
Utility
US 5,224,604 · App. 07/594,350
Apparatus and method for separation of wet and dry particles
Inventors:
Tomasz Duczmal, Jakob Schneider
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Oct 9, 1990
Inventors
Tomasz Duczmal
Jakob Schneider
Assignee (at issue)
Hydro Processing & Mining Ltd.
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.