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. 18, 1977
Filed:
May. 03, 1976
Applicant:
Inventor:
Doud Roger Branham, Redwood City, CA (US);
Assignee:
Oxford Laboratories Inc., Foster City, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01L / ;
U.S. Cl.
CPC ...
734256 ; 2221 / ;
Abstract
A hand-held micropipettor having a construction to impede transfer of heat from a handle to a portion enclosing a piston chamber, and means for drawing room air along the piston to effect its cooling when the micropipettor is operated. A compressible piston seal is held in place with a retainer urged in an axial direction by a resilient element with an uniform force independent of the position of the piston.
Branham, Doud. (1977). Hand-held micropipettor with improved accuracy of liquid volumes (U.S. Patent No. 4054062). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4054062
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile