Granted Patent
Utility
US 6,695,280 · App. 10/183,376
Device for pneumatic control
Inventors:
Michael Litzenberg, Klaus Vogel
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Jun 28, 2002
Inventors
Michael Litzenberg
Klaus Vogel
Assignee (at issue)
SIG Corpoplast GmbH & Co. KG.
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.