Serological pipette

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Description

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

FIG. 2 is an elevational side view thereof;

FIG. 3 is a top view thereof; and

FIG. 4 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D223643 May 1972 Tejera
3290946 December 1966 Pursell
3815790 June 1974 Allen et al.
3873274 March 1975 Neisius
3881360 May 1975 Jurado
Other references
  • Cole-Parmer, 1977-1978, catalog, .COPYRGT.1976, p. 259, P.sub.1 pump, catalog No. 6221-01.
Patent History
Patent number: D252586
Type: Grant
Filed: Jul 5, 1977
Date of Patent: Aug 7, 1979
Inventor: Thomas L. Kovach (Centerville, OH)
Primary Examiner: Bernard Ansher
Attorney: Lawrence B. Biebel
Application Number: 5/813,115
Classifications
Current U.S. Class: D24/55; 73/4256; 128/234; Adjustable Stroke Pump Piston, Pulsator Or Follower (222/309)
International Classification: D2402;