Granted Patent
Utility
US 4,168,636 · App. 05/831,772
Refrigeration compressor having multi-part crankshaft
Inventor:
Erich J. Kocher
Patented Case
View Patent ↗
Granted: Sep 25, 1979
Filed: Sep 9, 1977
Inventor
Erich J. Kocher
Assignee (at issue)
Vilter Manufacturing LLC
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.