Granted Patent
Utility
US 6,779,350 · App. 10/426,412
Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor
Inventors:
Ajit Ramachandran, Keith Sliger, Ronald A. Plasek
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: Apr 30, 2003
Inventors
Ajit Ramachandran
Keith Sliger
Ronald A. Plasek
Assignee (at issue)
Ritchie Engineering Company, 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.