Patents by Inventor Arthur N. Marshall

Arthur N. Marshall has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System of communications to alert police personnel of trouble on expressways
    Patent number: 4117404
    Abstract: A system involving transmitters adapted for mounting on trucks, buses, etc. and capable of energizing at least one transceiver along a highway which in turn sends a signal to a police control station to enable truck drivers to report a disabled vehicle and its general location; vandalism being avoided by mounting the transceivers on the top of light poles on expressways.
    Type: Grant
    Filed: July 25, 1975
    Date of Patent: September 26, 1978
    Assignee: Traffic Safety Systems, Inc.
    Inventor: Arthur N. Marshall