Granted Patent
Utility
US 4,262,126 · App. 06/065,802
Guanidine derivatives of imidazoles and thiazoles
Inventors:
David J. Gilman, James Michael Wardleworth, Tobias O. Yellin
Patented Case
View Patent ↗
Granted: Apr 14, 1981
Filed: Aug 13, 1979
Inventors
David J. Gilman
James Michael Wardleworth
Tobias O. Yellin
Assignees (at issue)
IMPERIAL CHEMICAL INDUSTRIES LIMITED
ICI Americas, Inc.
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.