Patents by Inventor John F. Schosser

John F. Schosser 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
    Patent number: 4818928
    Abstract: This invention pertains to portable battery-pack power supplies for use in devices which must be operated between an upper voltage and a lower voltage limit. The battery pack is comprised of a main power supply and a reserve power supply. The reserve power supply is switched into series connection with the main power supply when said main power supply is discharged to the lower voltage limit. Means are provided for ensuring that only the initial power supply is switched into the circuit after fresh cells are installed in the battery pack.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: April 4, 1989
    Assignee: Duracell Inc.
    Inventor: John F. Schosser
  • Emergency lantern
    Patent number: D279221
    Type: Grant
    Filed: February 7, 1983
    Date of Patent: June 11, 1985
    Assignee: Duracell Inc.
    Inventors: John F. Schosser, Charles M. Dole, Walter P. Koda
  • Compact light
    Patent number: D281280
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: November 5, 1985
    Assignee: Duracell Inc.
    Inventors: John F. Schosser, Roger K. Gleason, Charles M. Dole, Max Us, Bradley Burke
  • Portable light
    Patent number: D281819
    Type: Grant
    Filed: April 11, 1983
    Date of Patent: December 17, 1985
    Assignee: Duracell Inc.
    Inventors: John F. Schosser, Androus D. Noyes, Gerald A. Pelletier
  • Floating lantern
    Patent number: D284309
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: June 17, 1986
    Assignee: Duracell Inc.
    Inventors: John F. Schosser, Roger F. Gleason, Charles M. Dole, Richard F. Galya, Peter A. Gebhardt
  • Flashlight
    Patent number: D285356
    Type: Grant
    Filed: February 8, 1983
    Date of Patent: August 26, 1986
    Assignee: Duracell Inc.
    Inventors: John F. Schosser, Roger F. Gleason, Charles M. Dole, Max Us, John D. Howard, Peter D. Spaine