Pipette tip

- Cetus Corporation
Description

FIG. 1 is a front perspective view of a pipette tip showing my new design;

FIG. 2 is a side elevational view thereof, the undisclosed sides being identical;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a cross-sectional view thereof, taken on line 5--5 of FIG. 4.

The characteristic feature of the design resides in the four concentric ridges found on the interior surface of the pipette tip immediately below and within the bell top as illustrated in FIGS. 1, 2 and 5 and the six vertical ribs evenly spaced along the bell top.

Referenced Cited
U.S. Patent Documents
D228492 October 1973 Cohen
D252586 August 7, 1979 Kovach
Patent History
Patent number: D297054
Type: Grant
Filed: Apr 16, 1986
Date of Patent: Aug 2, 1988
Assignee: Cetus Corporation (Emeryville, CA)
Inventor: Fred G. Williams (San Anselmo, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Stella M. Reid
Attorneys: Albert P. Halluin, Leona L. Lauder
Application Number: 6/852,910
Classifications
Current U.S. Class: D24/55