Granted Patent
Utility
US 5,181,618 · App. 07/721,181
Apparatus for clearing the weigh pan of a particle size analyzer
Inventor:
Glenn J. Pogue
Patented Case
View Patent ↗
Granted: Jan 26, 1993
Filed: Jun 26, 1991
Inventor
Glenn J. Pogue
Assignee (at issue)
ROTEX, INC.
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.