Granted Patent
Utility
US 4,849,490 · App. 07/159,911
Novel bis(maleimide)/polysiloxanes
Inventor:
Pascal Barthelemy
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Feb 24, 1988
Inventor
Pascal Barthelemy
Assignee (at issue)
RHONE-POULENC CHIMIE
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.