Granted Patent
Utility
US 5,763,637 · App. 08/587,645
Process for preparing dimethyl vinylphosphonate from dimethyl 2-acetoxyethanephosphonate
Inventors:
Knut Riedel, Udo Dettmeier, Guenter Roscher
Patented Case
View Patent ↗
Granted: Jun 9, 1998
Filed: Jan 17, 1996
Inventors
Knut Riedel
Udo Dettmeier
Guenter Roscher
Assignee (at issue)
Hoechst GmbH
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.