Granted Patent
Utility
US 5,322,736 · App. 08/080,640
Hollow-trilobal cross-section filaments
Inventors:
John B. Boyle, Weldon H. Peterson
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Jun 24, 1993
Inventors
John B. Boyle
Weldon H. Peterson
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.