Granted Patent
Utility
US 4,490,927 · App. 06/374,584
Apparatus for curing fibrous mineral insulation material
Inventor:
Ronald E. Kissell
Patented Case
View Patent ↗
Granted: Jan 1, 1985
Filed: May 3, 1982
Inventor
Ronald E. Kissell
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.