Granted Patent
Utility
US 5,340,384 · App. 08/026,730
Vacuum degassing
Inventor:
Carl W. Sims
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Mar 5, 1993
Inventor
Carl W. Sims
Assignee (at issue)
Systec Corporation
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.