Granted Patent
Utility
US 5,145,009 · App. 07/543,254
Apparatus for metering dry and/or pulverulent pourable material, especially dye powder
Inventors:
Mickael Mheidle, Roland Bauhofer
Patented Case
View Patent ↗
Granted: Sep 8, 1992
Filed: Jun 25, 1990
Inventors
Mickael Mheidle
Roland Bauhofer
Assignee (at issue)
Ciba-Geigy
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.