Granted Patent
Utility
US 6,307,874 · App. 09/648,249
Expansion loops for heating elements in vacuum furnaces
Inventor:
Craig A. Moller
Patented Case
View Patent ↗
Granted: Oct 23, 2001
Filed: Aug 25, 2000
Inventor
Craig A. Moller
Assignee (at issue)
Ipsen International, GmbH
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.