Granted Patent
Utility
US 6,530,528 · App. 09/918,424
Refrigerant expansion valve having electrically operated inlet shutoff with improved armature dampening
Inventors:
William L. Breyer, Patrick A. Bloedel
Patented Case
View Patent ↗
Granted: Mar 11, 2003
Filed: Jul 27, 2001
Inventors
William L. Breyer
Patrick A. Bloedel
Assignee (at issue)
Parker-Hannifin 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.