Granted Patent
Utility
US 4,544,392 · App. 06/626,171
Apparatus for thermally conditioning heat softenable material
Inventor:
Isac M. Sheinkop
Patented Case
View Patent ↗
Granted: Oct 1, 1985
Filed: Jun 29, 1984
Inventor
Isac M. Sheinkop
Assignee (at issue)
Owens Corning Fiberglass 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.