Test tube

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Description

FIG. 1 is a perspective view of a test tube of my design; and

FIG. 2 is a cross-sectional view taken along line II--II of FIG. 1.

Referenced Cited
U.S. Patent Documents
D213292 February 1969 Arsenault et al.
2240101 April 1941 Smith
2858036 October 1958 Earle et al.
3134725 May 1964 Brook et al.
3705018 December 1972 Taylor
3898468 August 1975 Ikeda
3980436 September 14, 1976 Greenfield et al.
Other references
  • Cambosco Scientific Cat., .COPYRGT.1965, p. 75, Centrifuge Tube, item No. 21-185.
Patent History
Patent number: D246600
Type: Grant
Filed: Nov 5, 1975
Date of Patent: Dec 6, 1977
Assignee: Japan Medical Supply Co., Ltd.
Inventor: Motoji Kurata (Hatsukaichi)
Primary Examiner: Bernard Ansher
Attorney: James E. Armstrong, III
Application Number: 5/629,043
Classifications
Current U.S. Class: D24/56
International Classification: D2402;