Syringe having a calibrated plunger

- Abbott Laboratories
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Description

FIG. 1 is a perspective view of the syringe having a calibrated plunger showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevational view thereof; and

FIG. 5 is a side elevational view thereof showing the plunger in the retracted position.

Referenced Cited
U.S. Patent Documents
4064879 December 27, 1977 Leibinsohn
4121588 October 24, 1978 Geiger
Patent History
Patent number: D260814
Type: Grant
Filed: Oct 30, 1978
Date of Patent: Sep 15, 1981
Assignee: Abbott Laboratories (North Chicago, IL)
Inventors: Donald J. Goldhardt (Grove City, OH), Darcy M. Willis (Gurnee, IL)
Primary Examiner: Sam Rosen
Attorneys: Gildo E. Fato, Robert L. Niblack
Application Number: 5/955,994
Classifications
Current U.S. Class: D24/24; D24/60
International Classification: D2402;