Patents by Inventor David M. Matti

David M. Matti 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).

  • Battery pack cartridge
    Patent number: 4464445
    Abstract: There is provided a battery pack cartridge for holding rechargeable batteries in a portable personal attachment having an electrical wire with connector to provide separable electrical connection to the electronic device. In an alternative embodiment the connection to the device, may be comprised of dummy battery inserts bearing electrical connections to said interconnecting wire.
    Type: Grant
    Filed: May 13, 1983
    Date of Patent: August 7, 1984
    Inventor: David M. Matti