Granted Patent
Utility
US 4,246,219 · App. 06/024,350
Multisegmented filament spinning process
Inventors:
Jing-peir Yu, James E. Bromley
Patented Case
View Patent ↗
Granted: Jan 20, 1981
Filed: Mar 27, 1979
Inventors
Jing-peir Yu
James E. Bromley
Assignee (at issue)
Monsanto Company
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.