Granted Patent
Utility
US 5,035,574 · App. 07/394,478
Pump housing, mould parts of a mould wall for a pump housing and method of manufacturing a pump housing
Inventor:
Gerrit de Vries
Patented Case
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Granted: Jul 30, 1991
Filed: Aug 16, 1989
Inventor
Gerrit de Vries
Assignee (at issue)
Stork Pompen B.V.
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.