Granted Patent
Utility
US 4,846,246 · App. 07/100,336
Security gate operable with one hand
Inventor:
Carl M. Stern
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Sep 23, 1987
Inventor
Carl M. Stern
Assignee (at issue)
Innova Development 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.