Granted Patent
Utility
US 4,260,071 · App. 06/065,815
Bulk material container
Inventors:
Robert A. Bamburg, Farris N. Duncan, Roger M. Floyd
Patented Case
View Patent ↗
Granted: Apr 7, 1981
Filed: Aug 13, 1979
Inventors
Robert A. Bamburg
Farris N. Duncan
Roger M. Floyd
Assignee (at issue)
Manville Forest Products Corporation
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.