Granted Patent
Utility
US 4,284,758 · App. 06/207,248
Glyoxal/cyclic urea condensates
Inventor:
Bernard F. North
Patented Case
View Patent ↗
Granted: Aug 18, 1981
Filed: Nov 17, 1980
Inventor
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.