FIG. 1 is a perspective view of a variable volume hand held micropipettor showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a view of the right side thereof;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a bottom view of FIG. 3;

FIG. 6 is a rear view thereof; and

FIG. 7 is a view of the left side thereof.

Referenced Cited
U.S. Patent Documents
RE27637 May 1973 Roach
D249553 September 19, 1978 Strum et al.
3232117 February 1966 Gilmont
3810391 May 1974 Suovaniemi
3827305 August 1974 Gilson et al.
4009611 March 1, 1977 Koffer et al.
4099548 July 11, 1978 Strum et al.
Patent History
Patent number: D252823
Type: Grant
Filed: Jun 6, 1977
Date of Patent: Sep 4, 1979
Assignee: Oxford Laboratories, Inc.
Inventors: Stanley J. Withers (Berkeley, CA), Ronald L. Sturm (San Carlos, CA)
Primary Examiner: Bernard Ansher
Attorney: Karl A. Limbach
Application Number: 5/803,899
Current U.S. Class: D24/55; 73/4256
International Classification: D2402;