Granted Patent
Utility
US 4,977,293 · App. 07/465,513
Monoethylenically unsaturated compounds
Inventors:
Kevin Hatton, Edward Irving, Josephine M. A. Walshe, Anne Mallaband
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Jan 16, 1990
Inventors
Kevin Hatton
Edward Irving
Josephine M. A. Walshe
Anne Mallaband
Assignee (at issue)
Ciba-Geigy
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.