Granted Patent
Utility
US 6,688,113 · App. 10/364,068
Synthetic felt regenerator material for stirling cycle cryocoolers
Inventors:
Wallace Kunimoto, Arturo Soto
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Feb 11, 2003
Inventors
Wallace Kunimoto
Arturo Soto
Assignee (at issue)
Superconductor Technologies 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.