Granted Patent
Utility
US 6,623,258 · App. 10/009,667
Axial piston refrigerant compressor with piston front face projection
Inventors:
Frank Holm Iversen, Preben Bjerre
Patented Case
View Patent ↗
Granted: Sep 23, 2003
Filed: Nov 13, 2001
Inventors
Frank Holm Iversen
Preben Bjerre
Assignee (at issue)
Danfoss Compressors 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.