Granted Patent
Utility
US 5,113,897 · App. 07/721,965
Height-adjustable supply unit for receiving working devices, especially medical devices
Inventors:
Ryszard Kummerfeld, Siegfried Baumgarten, Gerd Holzapfel, Wolfgang Falb, Ulrich Palm
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Jun 27, 1991
Inventors
Ryszard Kummerfeld
Siegfried Baumgarten
Gerd Holzapfel
Wolfgang Falb
Ulrich Palm
Assignee (at issue)
DRAGERWERK AKTIEGESELLSCHAFT
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.