Granted Patent
Utility
US 4,774,340 · App. 06/855,735
Method for preparing 3-hydroxy pyrroles and esters thereof
Inventors:
Paul F. Corey, Frederick E. Ward, Kin F. Yip, Meitak Teresa Yip
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: Apr 25, 1986
Inventors
Paul F. Corey
Frederick E. Ward
Kin F. Yip
Meitak Teresa Yip
Assignee (at issue)
Miles 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.