Granted Patent
Utility
US 4,143,506 · App. 05/864,069
Method and apparatus for introducing a strand into a continuously advancing roving
Inventors:
Richard H. Pierce, Arnold J. Eisenberg
Patented Case
View Patent ↗
Granted: Mar 13, 1979
Filed: Dec 23, 1977
Inventors
Richard H. Pierce
Arnold J. Eisenberg
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.