Granted Patent
Utility
US 4,390,284 · App. 06/115,295
Method and apparatus for wetting powder
Inventors:
Paul E. Hyde, John A. Rowell
Patented Case
View Patent ↗
Granted: Jun 28, 1983
Filed: Jan 25, 1980
Inventors
Paul E. Hyde
John A. Rowell
Assignee (at issue)
Neptune Microfloc, Incorporated
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.