Granted Patent
Utility
US 4,418,522 · App. 06/278,306
Knockoff control system and apparatus for textile strand twist frames
Inventors:
Kenneth T. Harrop, Robert D. McArtor
Patented Case
View Patent ↗
Granted: Dec 6, 1983
Filed: Jun 29, 1981
Inventors
Kenneth T. Harrop
Robert D. McArtor
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.