Granted Patent
Utility
US 4,598,899 · App. 06/629,525
Light gauge metal scrap melting system
Inventor:
Paul V. Cooper
Patented Case
View Patent ↗
Granted: Jul 8, 1986
Filed: Jul 10, 1984
Inventor
Paul V. Cooper
Assignee (at issue)
Kennecott Holdings Company
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.