Granted Patent
Utility
US 4,910,982 · App. 07/258,214
Self-assembling locking device
Inventor:
Merrill A. Dana
Patented Case
View Patent ↗
Granted: Mar 27, 1990
Filed: Oct 14, 1988
Inventor
Merrill A. Dana
Assignee (at issue)
Engineered Security Products 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.