Granted Patent
Utility
US 6,308,702 · App. 09/580,381
Compact high-efficiency air heater
Inventors:
Paul H. J. Huyghe, Hans Dewolf
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: May 26, 2000
Inventors
Paul H. J. Huyghe
Hans Dewolf
Assignee (at issue)
Thomas & Betts International LLC
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.