Granted Patent
Utility
US 5,374,301 · App. 07/983,170
Inks suitable for use in ink jet printing
Inventors:
Peter Gregory, Ronald Wynford Kenyon
Patented Case
View Patent ↗
Granted: Dec 20, 1994
Filed: Nov 30, 1992
Inventors
Peter Gregory
Ronald Wynford Kenyon
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.