Check valve for a syringe or the like

- JNN International

Latest JNN International Patents:

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a side elevation view of a check valve for a syringe or the like, showing my design; the opposite side being a mirror image thereof;

FIG. 2 is a front elevational view, the rear being a mirror image thereof;

FIG. 3 is bottom plan view thereof; and

FIG. 4 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
2691982 October 1954 Jones
3466066 September 1969 Dawson
3514131 May 1970 McKinney
3831629 August 1974 Mackal et al.
4294250 October 13, 1981 Dennehey
4369781 January 25, 1983 Gilson et al.
4452473 June 5, 1984 Ruschke
4576211 March 18, 1986 Valentini et al.
4607868 August 26, 1986 Harvey et al.
4778447 October 18, 1988 Velde et al.
Patent History
Patent number: D320449
Type: Grant
Filed: Sep 23, 1988
Date of Patent: Oct 1, 1991
Assignee: JNN International (Mentor, OH)
Inventor: Nyan S. Shah (Mentor, OH)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris V. Coles
Law Firm: Hill, Van Santen, Steadman & Simpson
Application Number: 7/248,024