Patents by Inventor Gerald Paul Frison

Gerald Paul Frison 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).

  • Skimmer assembly
    Patent number: 3962085
    Abstract: There is disclosed a plunger and filter assembly for insertion into the end of a collector cylinder whereby the cylinder with the assembly may be inserted into a vial to skim off the fluid contents therein. A plunger member has a cylindrical shape and a central opening therethrough, one end of the plunger having a smaller diameter than the other end thereof for insertion into one end of a collector cylinder. The other end of the plunger member has a diameter larger than the collector cylinder to engage and seal the plunger member with the interior wall of a vial into which the collector cylinder with the plunger member installed therein may be inserted.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: June 8, 1976
    Assignee: Abbott Laboratories
    Inventors: Max Davis Liston, Gerald Paul Frison