Patents by Inventor Robert Popoff

Robert Popoff 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).

  • Self-supporting air removal device for use with a nursing bottle
    Patent number: 5524783
    Abstract: A plunger with a base, upwardly extending shank, and tip receives an open bottom of a nursing bottle having a liquid filled sack in order to expel air from within the sack. Preferably, a trough is formed in the base about the shank for collecting liquid run over which escapes the sack during pressurization with the tip. Preferably, the base includes a plurality of vertically extending faces which allow the plunger to rest on a horizontal surface without rolling when storing the plunger subsequent to use.
    Type: Grant
    Filed: March 13, 1995
    Date of Patent: June 11, 1996
    Assignee: Cherub Products, Inc.
    Inventor: Robert Popoff