Granted Patent
Utility
US 4,283,292 · App. 06/102,588
Soil resistant yarn finish for synthetic organic polymer yarn
Inventors:
Robert M. Marshall, Kimon C. Dardoufas
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Dec 12, 1979
Inventors
Robert M. Marshall
Kimon C. Dardoufas
Assignee (at issue)
Allied 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.