Granted Patent
Utility
US 4,123,923 · App. 05/855,602
Combination lock
Inventor:
Lazlo Bako
Patented Case
View Patent ↗
Granted: Nov 7, 1978
Filed: Nov 29, 1977
Inventor
Lazlo Bako
Assignee (at issue)
Presto Lock Company, Division of Walter Kidde & Company, 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.