Granted Patent
Utility
US 5,014,040 · App. 07/422,028
Personal locator transmitter
Inventors:
Philip W. Weaver, Kamal Fakhry, Shin Saito
Patented Case
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Granted: May 7, 1991
Filed: Oct 16, 1989
Inventors
Philip W. Weaver
Kamal Fakhry
Shin Saito
Assignee (at issue)
Instantel Inc
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.