Granted Patent
Utility
US 4,311,500 · App. 06/161,955
Method of and means for removal of glass floods from a surface of a glass stream feeder
Inventors:
Cletis L. Roberson, Roland E. Langlois
Patented Case
View Patent ↗
Granted: Jan 19, 1982
Filed: Jun 23, 1980
Inventors
Cletis L. Roberson
Roland E. Langlois
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.