Granted Patent
Utility
US 4,765,780 · App. 06/868,218
Apparatus for and method of providing a multiplicity of streams of air-entrained fibers
Inventor:
John J. Angstadt
Patented Case
View Patent ↗
Granted: Aug 23, 1988
Filed: May 28, 1986
Inventor
John J. Angstadt
Assignee (at issue)
The Procter & Gamble 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.