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:
Feb. 07, 1995
Filed:
Jul. 13, 1992
Applicant:
Inventors:
Ian W Davidson, Bedfordshire, GB;
Paul Sheard, Northants, GB;
Assignee:
Unilever Patent Holdings B.V., Rotterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ; C12P / ;
U.S. Cl.
CPC ...
435101 ; 435 712 ; 435-72 ; 435-732 ; 435871 ;
Abstract
Enhanced extraction of solubilized antigens is obtained from bacteria such as Chlamydia and Neisseri by the use of a buffer containing a zwitterionic surface active agent, especially CHAPS or CHAPSO, in the absence of divalent cations. The extraction is conducted at elevated temperature, and provides a sample useful in assays for the presence of the bacteria.