Granted Patent
Utility
US 4,816,550 · App. 07/143,212
Polyamide feed yarn for air-jet texturing
Inventors:
Frank Stutz, Jing-peir Yu, Stanley E. McKinney
Patented Case
View Patent ↗
Granted: Mar 28, 1989
Filed: Jan 11, 1988
Inventors
Frank Stutz
Jing-peir Yu
Stanley E. McKinney
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.