Granted Patent
Utility
US 4,847,401 · App. 07/145,694
Continuous large-scale production of ethyl 2,2-difluoro-4-pentenoate and 2-fluorinated methyl aminoacetonitriles by use of a flow reactor
Inventors:
Fritz Gerhart, Michael Kolb
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Jan 15, 1988
Inventors
Fritz Gerhart
Michael Kolb
Assignee (at issue)
Merrell Dow Pharmaceuticals Inc.
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.