Granted Patent
Utility
US 4,292,182 · App. 06/196,424
Imparting anti-soiling properties to fibers
Inventor:
Alex K. Jahn
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Oct 14, 1980
Inventor
Alex K. Jahn
Assignee (at issue)
Badische 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.