Granted Patent
Utility
US 4,271,959 · App. 05/972,903
Coil rotating cooling conveyor system
Inventor:
Werner W. Eibe
Patented Case
View Patent ↗
Granted: Jun 9, 1981
Filed: Dec 26, 1978
Inventor
Werner W. Eibe
Assignee (at issue)
Blaw-Knox Foundry & Mill Machinery, 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.