Granted Patent
Utility
US 5,606,903 · App. 08/565,244
Rodless pressure cylinder
Inventor:
Volker Drittel
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: Nov 30, 1995
Inventor
Volker Drittel
Assignee (at issue)
Hygrama AG
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.