Granted Patent
Utility
US 4,301,577 · App. 06/071,059
Process for treating tufted pile fabric
Inventors:
Helmut Mueller, Harry G. Gallagher
Patented Case
View Patent ↗
Granted: Nov 24, 1981
Filed: Aug 30, 1979
Inventors
Helmut Mueller
Harry G. Gallagher
Assignee (at issue)
Bigelow-Sanford, Inc.
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.