Granted Patent
Utility
US 4,945,169 · App. 07/215,555
Novel bis-maleimide compounds containing sulfonate linkages
Inventor:
Bojayan Durairaj
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Jul 6, 1988
Inventor
Bojayan Durairaj
Assignee (at issue)
Indspec Chemical Corporation
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.