Granted Patent
Utility
US 4,313,732 · App. 06/212,109
Process for improving washfastness of indigo-dyed fabrics
Inventors:
Edward W. Teague, Louis A. Graham, Bobby L. McConnell
Patented Case
View Patent ↗
Granted: Feb 2, 1982
Filed: Dec 2, 1980
Inventors
Edward W. Teague
Louis A. Graham
Bobby L. McConnell
Assignee (at issue)
Burlington Industries LLC
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.