Granted Patent
Utility
US 4,656,292 · App. 06/745,748
2,3-dimethylmaleimido-alkyl haloacetates
Inventor:
Martin Roth
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Jun 17, 1985
Inventor
Martin Roth
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.