Granted Patent
Utility
US 4,056,955 · App. 05/695,129
Ignition lock
Inventor:
Dwight W. Glass
Patented Case
View Patent ↗
Granted: Nov 8, 1977
Filed: Jun 11, 1976
Inventor
Dwight W. Glass
Assignee (at issue)
Keystone Consolidated 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.