Patents by Inventor Phillip Ashcroft

Phillip Ashcroft 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).

  • Indicator lock
    Patent number: 11536053
    Abstract: Disclosed herein are cylindrical door locks configured to indicate the lock status of the door lock to nearby persons. In some instances, the lock status is indicated on a first side of the door. In other instances, the lock status is indicated on both a first side and a second side of the door.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: December 27, 2022
    Assignee: Sargent Manufacturing Company
    Inventors: Phillip Ashcroft, Brian R. Fournier, Lee Griswold, Christine Voelker
  • INDICATOR LOCK
    Publication number: 20210388641
    Abstract: Disclosed herein are cylindrical door locks configured to indicate the lock status of the door lock to nearby persons. In some instances, the lock status is indicated on a first side of the door. In other instances, the lock status is indicated on both a first side and a second side of the door.
    Type: Application
    Filed: June 4, 2021
    Publication date: December 16, 2021
    Inventors: Phillip Ashcroft, Brian R. Fournier, Lee Griswold, Christine Voelker