Granted Patent
Utility
US 4,350,375 · App. 06/119,977
Double-slider zipper latching device
Inventor:
Lazlo Bako
Patented Case
View Patent ↗
Granted: Sep 21, 1982
Filed: Feb 8, 1980
Inventor
Lazlo Bako
Assignee (at issue)
Presto Lock, 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.