Granted Patent
Utility
US 4,734,481 · App. 07/001,312
Novel organometallic polymers
Inventor:
Alfred Steinmann
Patented Case
View Patent ↗
Granted: Mar 29, 1988
Filed: Jan 8, 1987
Inventor
Alfred Steinmann
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.