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.

Date of Patent:
Sep. 20, 1983

Filed:

Apr. 03, 1978
Applicant:
Inventor:

Herbert Mittleman, Deerfield, IL (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604 86 ; 604247 ;
Abstract

A check valve housing is rigidly attached to the first inlet of an injection site having a body portion, a first inlet, a second inlet and an outlet. The check valve housing encloses a duckbill valve member and has an interior wall which securely and frictionally engages a portion of the external surface of the duckbill valve member.


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