Patents by Inventor John Pitzpatrick

John Pitzpatrick 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).

  • VANDAL PROOF INTERCOM SYSTEM FOR APARTMENT BUILDINGS
    Publication number: 20060256943
    Abstract: An electronic apartment station intercom unit, housed in a vandal proof enclosure, providing a means for a tenant to communicate with apartment building main entrance door panel and means to unlock said door. This unit has a power storage unit that enables this unit to be compatible with existing apartment building switching units. This power storage unit can be in the form of capacitors. In addition, this unit also contains a timer to shut the intercom unit off after a preset period of time.
    Type: Application
    Filed: July 31, 2006
    Publication date: November 16, 2006
    Applicant: ELECTRONIC LOCKING SPECIALTIES
    Inventors: John Unger, John Pitzpatrick