Multistage pipet

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Description

FIG. 1 is a front perspective view of the multistage pipet;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a top plan view with all the sides being a mirror image of one another;

FIG. 4 is a left end elevational view thereof; and,

FIG. 5 is a right end elevational view thereof.

Referenced Cited
U.S. Patent Documents
RE31555 April 17, 1984 Garren et al.
D228492 October 1973 Cohen
D260554 September 1, 1981 Roach
D303151 August 29, 1989 Saint-Amand
D333705 March 2, 1993 Garren et al.
D357324 April 11, 1995 Bartal
D373827 September 17, 1996 Polaniec
898456 September 1908 Farnham
4210156 July 1, 1980 Bennett
5272926 December 28, 1993 Wilkins
5516564 May 14, 1996 Root et al.
Patent History
Patent number: D401698
Type: Grant
Filed: Jan 31, 1997
Date of Patent: Nov 24, 1998
Assignee: Becton Dickinson and Company (Franklin Lakes, NJ)
Inventor: Michael Daniels (Denville, NJ)
Primary Examiner: Stella Reid
Assistant Examiner: G. Andoll
Attorneys: Nanette S. Thomas, Bruce S Weintraub
Application Number: 0/68,101
Classifications
Current U.S. Class: Pipette Or Burette (D24/222); 73/86401
International Classification: 2402;