Granted Patent
Utility
US 4,622,059 · App. 06/785,424
Apparatus for controlling temperature within a forehearth
Inventor:
George W. Brown
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Oct 8, 1985
Inventor
George W. Brown
Assignee (at issue)
Emhart Industries, Inc.
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.