Granted Patent
Utility
US 4,893,704 · App. 07/328,992
Power door lock actuator
Inventors:
Timothy J. Fry, Lowell T. Greentaner
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Mar 27, 1989
Inventors
Timothy J. Fry
Lowell T. Greentaner
Assignee (at issue)
General Motors LLC
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.