Granted Patent
Utility
US 4,966,979 · App. 07/341,994
Process for synthesis of azetidine and novel intermediates therefor
Inventors:
Young S. Lo, Dwight A. Shamblee, David H. Causey, Richard P. Mays
Patented Case
View Patent ↗
Granted: Oct 30, 1990
Filed: Apr 24, 1989
Inventors
Young S. Lo
Dwight A. Shamblee
David H. Causey
Richard P. Mays
Assignee (at issue)
A. H. Robins Company, Incorporated
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.