Granted Patent
Utility
US 5,209,974 · App. 07/776,935
Copolymeric yarns for textured carpets
Inventors:
Donald H. Martin, Walter J. Nunning, Scott E. Osborn, James S. Ridgway, Rupert J. Snooks, Jr., John H. Southern
Patented Case
View Patent ↗
Granted: May 11, 1993
Filed: Oct 15, 1991
Inventors
Donald H. Martin
Walter J. Nunning
Scott E. Osborn
James S. Ridgway
Rupert J. Snooks, Jr.
John H. Southern
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.