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:
Jul. 06, 1993
Filed:
Dec. 08, 1989
Shigekazu Nagata, Suita, JP;
Sumio Sugano, Tokyo, JP;
Dong W Kim, Tokyo, JP;
Taichi Uetsuki, Tokyo, JP;
Yoshito Kaziro, Tokyo, JP;
Mochida Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
A DNA fragment containing a promoter region for human polypeptide chain elongation factor-1.alpha., its base sequence and expression plasmids containing the DNA fragment having high applicability to a wide range of host cells with high expression capacity. These expression plasmids can be maintained stably for at least one month in mammalian host cells. Such features of the expression plasmids may render possible the efficient production of various kinds of useful physiologically active substances for a long period using wide range of mammalian cells as the host.