Granted Patent
Utility
US 4,548,611 · App. 06/499,293
Method and apparatus for dyeing textile yarn substrates by impacting a foam
Inventors:
James Paterson, Charles G. Whitener, Jr.
Patented Case
View Patent ↗
Granted: Oct 22, 1985
Filed: May 31, 1983
Inventors
James Paterson
Charles G. Whitener, Jr.
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.