Granted Patent
Utility
US 4,911,486 · App. 07/393,551
Tamper proof slide bolt locking apparatus
Inventor:
John P. Anderson
Patented Case
View Patent ↗
Granted: Mar 27, 1990
Filed: Aug 14, 1989
Inventor
John P. Anderson
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.