Granted Patent
Utility
US 4,355,524 · App. 06/167,919
Combination locks
Inventor:
Lazlo Bako
Patented Case
View Patent ↗
Granted: Oct 26, 1982
Filed: Jul 11, 1980
Inventor
Lazlo Bako
Assignee (at issue)
Kidde, Inc. (Presto Lock Company Division)
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.