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:
Dec. 15, 1987
Filed:
Jan. 19, 1983
Applicant:
Inventors:
Arthur D Levinson, Burlingame, CA (US);
Christian C Simonsen, San Jose, CA (US);
Assignee:
Genentech, Inc., South San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12N / ; C12N / ; C12P / ; C12P / ; C12P / ; C12P / ; C07H / ;
U.S. Cl.
CPC ...
4352402 ; 435 60 ; 435 70 ; 435 71 ; 435 91 ; 4351721 ; 4351723 ; 43524026 ; 435319 ; 435320 ; 536 27 ; 935 32 ; 935 34 ; 935 36 ; 935 70 ;
Abstract
A polycistronic construction of xenogeneic sequences expressible in eukaryotic cells is described. DHFR encoding sequences under control of the same promoter with another foreign gene can be amplified with methotrexate, and thus cause coamplification of the foreign gene.