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:
Oct. 20, 1981
Filed:
Nov. 14, 1979
Applicant:
Inventors:
Erich Weiss, Mannheim-Sandhofen, DE;
Dieter Ungermann, Mannheim, DE;
Assignee:
Boehringer Mannheim, Mannheim-Waldhop, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01L / ; G01N / ; A61M / ;
U.S. Cl.
CPC ...
7386411 ; 7386418 ; 128230 ; 128232 ; 128765 ; 422100 ;
Abstract
Pipette with elastic bellows wherein the travel of the bellows is limited by preset stops. The bellows is prestressed between the stops over a range of movement within which the bellows possesses adequate springback force to return to a rest position predetermined by one of the stops.