Granted Patent
Utility
US 6,574,950 · App. 09/968,679
Thermally responsive recuperator housing
Inventor:
James S. Nash
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Oct 1, 2001
Inventor
James S. Nash
Assignee (at issue)
Ingersoll Rand Energy Systems 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.