Granted Patent
Utility
US 4,300,931 · App. 06/143,224
Method and apparatus for collecting fibrous material
Inventor:
John D. Phillips
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Apr 24, 1980
Inventor
John D. Phillips
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.