Patents by Inventor Alvin L. Philipson

Alvin L. Philipson 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: 4165546
    Abstract: A portable cuspidor supplied with rinse water and vacuum drainage through ganged flexible hoses has a hollow, enclosed cuspidor cup or bowl provided with a cushioned side wall opening against which facial areas surrounding the mouth of the patient or user are placed for expectorating. Interior rinse water jet streams are so directed and distributed against the interior of the cuspidor cup or bowl that substantially all of the rinse water, together with expectorant, will flow down for withdrawal at a drain orifice at the base of the bowl, no matter at what angle the device is being held for use.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: August 28, 1979
    Inventors: Alvin L. Philipson, Noel W. Abramson, Michael J. Woltcheck