Granted Patent
Utility
US 6,081,423 · App. 09/218,980
Power supply with obliquely impinging airflow
Inventor:
David C. Griffin
Patented Case
View Patent ↗
Granted: Jun 27, 2000
Filed: Dec 22, 1998
Inventor
David C. Griffin
Assignee (at issue)
THE ESAB GROUP 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.