Granted Patent
Utility
US 4,333,369 · App. 06/216,748
Apparatus and method for dividing fibrous mineral blankets
Inventor:
Ralph E. McCort
Patented Case
View Patent ↗
Granted: Jun 8, 1982
Filed: Dec 16, 1980
Inventor
Ralph E. McCort
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.