Medicament injector

- Derata Corporation
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Description

FIG. 1 is a front and top left perspective view of a medicament injector showing our new design;

FIG. 2 is a front elevational view thereof, shown at its operative maximum extended length;

FIG. 3 is a front elevational view thereof, shown at its operative minimum, compressed length;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof, the bottom plan being a mirror image thereof;

FIG. 6 is a left side elevational view thereof; and

FIG. 7 is a right side elevational view thereof.

Referenced Cited
U.S. Patent Documents
2322244 June 1943 Lockhart
2547099 April 1951 Smoot
2605763 August 1952 Smoot
2645223 July 1953 Lawshe
2687725 August 1954 Hein, Jr.
2754818 July 1956 Scherer
2762369 September 1956 Venditty
2762370 September 1956 Venditty
2816543 December 1957 Venditty et al.
2816544 December 1957 Scherer et al.
2825332 March 1958 Johnson
3115133 December 1963 Morando
3129708 April 1964 Krantz
3330276 August 1967 Gordon
3335722 August 1967 Lowry et al.
3507276 April 1970 Burgess
3521633 July 1970 Yahner
4394863 July 26, 1983 Bartner
4507113 March 26, 1985 Dunlap
4573971 March 4, 1986 Kamstra
4573972 March 4, 1986 Kamstra
4596556 June 24, 1986 Morrow et al.
4623332 November 18, 1986 Lindmayer et al.
4624660 November 25, 1986 Mijers et al.
Other references
  • Preci-Jet 50 Box, (Exhibit 1). Photograph of Preci-Jet 50, (Exhibit 2). Vitajet Instruction Manual, pp. 2 and 24, (Exhibit 3). Medi-Jector II Instruction Manual, pp. i and 12, (Exhibit 4). Medi-Jector LV, pp. ii and 12, (Exhibit 5). Medi-Jector Instructions Manual at p. 5, (Exhibit 6).
Patent History
Patent number: D304616
Type: Grant
Filed: Apr 30, 1987
Date of Patent: Nov 14, 1989
Assignee: Derata Corporation (Minneapolis, MN)
Inventors: Kenneth W. Dunlap (Plymouth, MN), David Bardwell (Minnetonka, MN)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Stella M. Reid
Law Firm: Merchant, Gould, Smith, Edell, Welter & Schmidt
Application Number: 7/44,520
Classifications
Current U.S. Class: D24/24