Granted Patent
Utility
US 5,652,242 · App. 08/457,538
Heterocyclic derivatives
Inventors:
Michael Garth Wayne, Michael J. Smithers, John Wall Rayner, Alan Faull, Robert J. Pearce, Andrew G. Brewster, Richard E. Shute, Stuart D. Mills, Peter William Rodney Caulkett
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Jun 1, 1995
Inventors
Michael Garth Wayne
Michael J. Smithers
John Wall Rayner
Alan Faull
Robert J. Pearce
Andrew G. Brewster
Richard E. Shute
Stuart D. Mills
Peter William Rodney Caulkett
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.