Granted Patent
Utility
US 6,435,039 · App. 09/508,235
Method and device for continuous gravimetric assaying
Inventors:
Wolfschaffner Hubert, Wagner Hubert, Häfner Hans Wilhelm
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Mar 7, 2000
Inventors
Wolfschaffner Hubert
Wagner Hubert
Häfner Hans Wilhelm
Assignee (at issue)
Pfister GmbH
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.