Granted Patent
Utility
US 6,237,555 · App. 09/645,976
Spark blanking apparatus for an internal combustion engine
Inventors:
Richard A. Dykstra, Robert K. Mitchell, Gary J. Gracyalny
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Sep 29, 2000
Inventors
Richard A. Dykstra
Robert K. Mitchell
Gary J. Gracyalny
Assignee (at issue)
Briggs & Stratton, 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.