Granted Patent
Utility
US 4,802,268 · App. 06/443,086
Apparatus for texturizing yarn
Inventors:
Hsin L. Li, Hendrikus J. Oswald, Alfred L. Liland
Patented Case
View Patent ↗
Granted: Feb 7, 1989
Filed: Nov 19, 1982
Inventors
Hsin L. Li
Hendrikus J. Oswald
Alfred L. Liland
Assignee (at issue)
AlliedSignal, Inc.
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.