Granted Patent
Utility
US 4,752,091 · App. 06/940,521
Latch with automatic closing feature
Inventor:
Frank T. Jackson
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Dec 10, 1986
Inventor
Frank T. Jackson
Assignee (at issue)
Hartwell Corporation
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.