Granted Patent
Utility
US 4,523,949 · App. 06/429,578
Aluminum dross reclamation
Inventors:
Irving W. Gower, Carl J. Cherry, David Yang
Patented Case
View Patent ↗
Granted: Jun 18, 1985
Filed: Sep 30, 1982
Inventors
Irving W. Gower
Carl J. Cherry
David Yang
Assignee (at issue)
Combustion Engineering, 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.