Patents Represented by Attorney David S. Kane
  • Patent number: 3952599
    Abstract: A fractional-fill capillary pipette adapted to fill to a predetermined mark to obtain a desired known volume of liquid such as blood, plasma, test reagents or the like is disclosed. The bore of the capillary tube is provided with means to facilitate the filling of the capillary tube to the mark with a continuous column of liquid to obtain a predetermined known volume without the necessity of filling the entire capillary tube.
    Type: Grant
    Filed: May 18, 1972
    Date of Patent: April 27, 1976
    Inventor: Waldemar A. Ayres
  • Patent number: D244565
    Type: Grant
    Filed: September 11, 1975
    Date of Patent: May 31, 1977
    Inventor: Stephen G. Bettum