Granted Patent
Utility
US 5,900,083 · App. 08/841,462
Heat treatment of cast alpha/beta metals and metal alloys and cast articles which have been so treated
Inventors:
Dale Scott Reed, Floyd Grant Felzien
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Apr 22, 1997
Inventors
Dale Scott Reed
Floyd Grant Felzien
Assignee (at issue)
The Duriron Company, 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.