Granted Patent
Utility
US 5,852,935 · App. 08/933,439
Control valve
Inventors:
Carsten Christensen, Carl Christian Dixen
Patented Case
View Patent ↗
Granted: Dec 29, 1998
Filed: Sep 18, 1997
Inventors
Carsten Christensen
Carl Christian Dixen
Assignee (at issue)
DANFOSS 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.