Granted Patent
Utility
US 5,954,870 · App. 08/480,237
Pigment composition
Inventors:
Peter K. Davies, John D. Schofield, John M. McCarthy
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Jun 7, 1995
Inventors
Peter K. Davies
John D. Schofield
John M. McCarthy
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.