Granted Patent
Utility
US 4,927,900 · App. 07/328,506
Aromatic polyamidoimides having maleimido end groups
Inventors:
Philippe Michaud, Yves Camberlin
Patented Case
View Patent ↗
Granted: May 22, 1990
Filed: Mar 24, 1989
Inventors
Philippe Michaud
Yves Camberlin
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.