Granted Patent
Utility
US 6,568,551 · App. 10/000,521
Actuating drive with a housing with sealing means
Inventor:
Christian Grossenbacher
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Nov 2, 2001
Inventor
Christian Grossenbacher
Assignee (at issue)
SIEMENS BUILDING TECHNOLOGIES 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.