Granted Patent
Utility
US 4,534,779 · App. 06/641,248
Method and apparatus for heating a mineral fiber forming spinner
Inventor:
Max G. Herschler
Patented Case
View Patent ↗
Granted: Aug 13, 1985
Filed: Aug 16, 1984
Inventor
Max G. Herschler
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.