The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 2004
Filed:
Oct. 06, 2000
Applicant:
Inventors:
Christopher Kelly, Larkspur, CA (US);
James S. Petrek, Danville, CA (US);
Kenneth Rainin, Piedmont, CA (US);
Steven T. Nielsen, Los Gatos, CA (US);
Assignee:
Rainin Instrument, LLC, Oakland, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01L 3/02 ;
U.S. Cl.
CPC ...
B01L 3/02 ;
Abstract
An air displacement pipette having axially spaced annular sealing and substantially cylindrical lateral support zones on the outer surface of the pipette's mounting shaft for mating with axially spaced annular sealing and substantially cylindrical lateral support regions on the inner surface of a pipette tip, whereby the pipette tip is easily and firmly mountable on and easily ejectable from the pipette tip mounting shaft by the application of minimal axial mounting and ejection forces.