Granted Patent
Utility
US 4,801,742 · App. 07/074,752
N-formylation of amino carboxylates with alkyl formates
Inventors:
Jennifer M. Quirk, Charles G. Carter, Robert Kupper
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Jul 17, 1987
Inventors
Jennifer M. Quirk
Charles G. Carter
Robert Kupper
Assignee (at issue)
W.R. Grace & Co. Conn.
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.