Granted Patent
Utility
US 4,459,582 · App. 06/473,794
Local control apparatus for central station alarm system
Inventors:
Robert F. Sheahan, David S. Terrett
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: Mar 10, 1983
Inventors
Robert F. Sheahan
David S. Terrett
Assignee (at issue)
American District Telegraph Company
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.