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:
Apr. 07, 1998
Filed:
Oct. 30, 1996
Applicant:
Inventors:
Robert Brown, Dartmouth, CA;
Michael Mezei, Halifax, CA;
Bill Pohajdak, Dartmouth, CA;
Warwick Charles Kimmins, Halifax, CA;
Assignee:
Dalhousie University, , CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
4241841 ; 424450 ; 424559 ; 424561 ; 424812 ; 514 21 ; 530853 ;
Abstract
A vaccine for the immunocontraception of mammals is described. The vaccine consists of zona pellucida antigens and an adjuvant encapsulated in a liposome delivery system. The liposome delivery system allows for the slow release of antigen resulting in a prolonged immune response. In particular, after a single injection of the vaccine, levels of anti-zona pellucida antibodies were detected for up to 22 months in seals. Thus, the vaccine according to the present invention is effective after a single dose and is therefore very useful in immunocontraceptive protocols.