Granted Patent
Utility
US 4,280,253 · App. 06/021,054
Method for collecting fibrous material
Inventor:
Dennis S. Holt
Patented Case
View Patent ↗
Granted: Jul 28, 1981
Filed: Mar 16, 1979
Inventor
Dennis S. Holt
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.