Granted Patent
Utility
US 4,786,569 · App. 06/901,095
Adhesively bonded photostructurable polyimide film
Inventors:
Ottmar Rohde, Armin Schaffner
Patented Case
View Patent ↗
Granted: Nov 22, 1988
Filed: Aug 27, 1986
Inventors
Ottmar Rohde
Armin Schaffner
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.