Granted Patent
Utility
US 4,533,906 · App. 06/418,583
Fence particularly useful for detecting intrusion attempts
Inventor:
Yoel Amir
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Sep 15, 1982
Inventor
Yoel Amir
Assignee (at issue)
Beta Engineering and Development Ltd.
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.