Granted Patent
Utility
US 5,344,977 · App. 08/008,056
Process for the preparation of 2,3-dibromopropionyl chloride
Inventors:
Alfons Arquint, Peter Leupin
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Jan 22, 1993
Inventors
Alfons Arquint
Peter Leupin
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.