Granted Patent
Utility
US 5,356,266 · App. 08/017,089
Centrifugal pump unit
Inventors:
Niels D. Jensen, Jorgen Daugbjerg
Patented Case
View Patent ↗
Granted: Oct 18, 1994
Filed: Feb 12, 1993
Inventors
Niels D. Jensen
Jorgen Daugbjerg
Assignee (at issue)
GRUNDFOS HOLDING A/S
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.