Patents by Inventor Leo J. Rosen

Leo J. Rosen 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).

  • Patent number: 4080595
    Abstract: An audible alarm device attachable to the clothing of the user has a flexible chain extending therefrom and terminating in a clip means attachable to a wallet in a nearby pocket. The interconnecting chain is wound upon a spring-stressed reel journalled within the device and having at one end an abutment member which, upon turning in response to pulling upon the chain, abuttingly contacts and moves an electrical switch actuating member from open to close circuit position for energizing a buzzer sounding an alarm that the wallet has been surreptitiously removed from the pocket.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: March 21, 1978
    Inventor: Leo J. Rosen