Delayed action dosage unit for releasing medicaments or the like in ruminants

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Description

FIG. 1 is a side elevational view of a delayed action dosage unit for releasing medicaments or the like in ruminants showing my new design;

FIG. 2 is a perspective view thereof;

FIG. 3 is a bottom plan view thereof; and

FIG. 4 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
3797492 March 1974 Place
4239040 December 16, 1980 Hosoya et al.
4312347 January 26, 1982 Magoon et al.
4425117 January 10, 1984 Hugemann et al.
4439197 March 27, 1984 Honda et al.
4564363 January 14, 1986 Gyurik et al.
Foreign Patent Documents
0061195 March 1982 EPX
Patent History
Patent number: D306347
Type: Grant
Filed: Nov 19, 1986
Date of Patent: Feb 27, 1990
Assignee: SmithKline Beckman Corporation (Philadelphia, PA)
Inventor: Robert J. Gyurik (Downington, PA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Stella M. Reid
Attorneys: Joseph A. Marlino, Stuart R. Suter, Alan D. Lourie
Application Number: 6/932,979
Classifications
Current U.S. Class: D24/63