Granted Patent
Utility
US 4,879,968 · App. 07/159,982
Separating device for trimming the width of a poured curtain of coating material
Inventors:
Martin Denz, Diethard Kapp-Schwoerer
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Feb 24, 1988
Inventors
Martin Denz
Diethard Kapp-Schwoerer
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.