ChIN简介页:美国化学文摘社CAS的专利服务Chemical Patents Plus停止服务(2002-10-25)
首  页 | ChemDB Portal | 帮  助 | 论  坛 |  关于本站 | 动态网页

 

美国化学文摘社CAS的专利服务Chemical Patents Plus停止服务(2002-10-25)

【URL】 http://casweb.cas.org/

【摘要】
     As of October 1, 2002, Chemical Patents Plus will no longer be available

【新闻主要内容】
     As of October 1, 2002, Chemical Patents Plus will no longer be available.

Chemical Patents Plus from CAS included the full text for all classes of patents issued by the U.S. Patent and Trademark Office from 1975 to the present. From January 1, 1995, the patent page images were available for a fee. Searching of the database was free, as was the display of patent
titles and abstracts. Users are now referred to the other extensive databases on the STN system that cover patents.

【相关链接】
  美国专利全文数据库(美国专利商标局)


Summary by 李晓霞 on 2002-10-25

Last updated by 李晓霞 on 2002-10-25

访问统计 | 软 件 | 论文专著 | 请留言 请在800x600分辨率以上,用IE4.0以上版本浏览
版权所有 © 1998 - 2015 中国科学院过程工程研究所
       高性能计算与化学信息学课题组
       中国·北京·京ICP备05058588