Granted Patent
Utility
US 4,809,748 · App. 06/568,780
Automatic sampling device
Inventor:
David Robins
Patented Case
View Patent ↗
Granted: Mar 7, 1989
Filed: Jan 6, 1984
Inventor
David Robins
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.