Patents by Inventor Charles L. La Patra

Charles L. La Patra 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).

  • Electronic article surveillance security system
    Patent number: 4573042
    Abstract: Apparatus for releasable attachment to articles to be monitored by a surveillance system of type involving radiant energy transmissions into an area of interest. The apparatus includes: an attachment device for effecting releasable attachment of the apparatus to an article and having an electrical switch with first and second states corresponding respectively to attachment thereof to the article and to release thereof from attachment; an alarm unit operable for generating an output indicative of an alarm condition; a receiver for receipt of radiant energy transmitted messages; and control circuitry connected to both the attachment device and the receiver for response to the attachment device switch second state and to messages received by the receiver for operating the alarm means to generate output indicative of an alarm condition. The apparatus may further include a negator unit for removing the alarm unit from generation of the alarm condition.
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: February 25, 1986
    Assignee: Sensormatic Electronics Corporation
    Inventors: Robert C. Boyd, Charles L. La Patra