Granted Patent
Utility
US 4,625,029 · App. 06/711,105
Novel cyclic ureas
Inventors:
William C. Floyd, III, Bernard F. North
Patented Case
View Patent ↗
Granted: Nov 25, 1986
Filed: Mar 13, 1985
Inventors
William C. Floyd, III
Bernard F. North
Assignee (at issue)
Sun Chemical Corporation
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.