Granted Patent
Utility
US 4,273,584 · App. 06/100,990
Detergent resistant compositions
Inventors:
Paul F. D'Angelo, Richard B. Metzler
Patented Case
View Patent ↗
Granted: Jun 16, 1981
Filed: Dec 7, 1979
Inventors
Paul F. D'Angelo
Richard B. Metzler
Assignee (at issue)
Union Carbide 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.