Granted Patent
Utility
US 6,258,967 · App. 09/331,451
Process for the preparation of an organozinc reagent
Inventors:
Andrew John Blacker, Jan Michael Fielden
Patented Case
View Patent ↗
Granted: Jul 10, 2001
Filed: Jun 21, 1999
Inventors
Andrew John Blacker
Jan Michael Fielden
Assignee (at issue)
Zeneca Limited
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.