Title:
Closure puncturable by polyethylene needle
United States Patent 2906423


Inventors:
Roland, Sandhage Ellsworth
Application Number:
US59861356A
Publication Date:
09/29/1959
Filing Date:
07/18/1956
Assignee:
AMERICAN CYANAMID CO
Primary Class:
International Classes:
A61D7/00; A61M3/00; B65D51/00
View Patent Images:
US Patent References:
2649090Rubber closure for pharmaceutical vials1953-08-18
2334905Closure for containers1943-11-23
2108583Container1938-02-15
1180665N/A1916-04-25