Granted Patent
Utility
US 4,895,009 · App. 07/267,385
Door-locking system for a motor vehicle
Inventors:
Frank Kleefeldt, Peter Bartel
Patented Case
View Patent ↗
Granted: Jan 23, 1990
Filed: Nov 4, 1988
Inventors
Frank Kleefeldt
Peter Bartel
Assignee (at issue)
Kiekert GmbH & Co. Kommanditgesellschaft
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.