Granted Patent
Utility
US 3,973,062 · App. 05/513,891
Coating device
Inventor:
Fritz Fahrni
Patented Case
View Patent ↗
Granted: Aug 3, 1976
Filed: Oct 10, 1974
Inventor
Fritz Fahrni
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.