Granted Patent
Utility
US 4,862,640 · App. 07/189,242
Powered sliding door opener/closer for vehicles
Inventors:
James G. Boyko, Timothy J. Farrar, Stephen B. Peterson
Patented Case
View Patent ↗
Granted: Sep 5, 1989
Filed: May 2, 1988
Inventors
James G. Boyko
Timothy J. Farrar
Stephen B. Peterson
Assignee (at issue)
Masco Industries, Inc.
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.