US D231981 S
Description (OCR text may contain errors)
United States Patent 0 Des. 231,981 Patented July 2, 1974 CENTRIFUGE ROTOR W. Charles Paulsen, 28 Juniper Road,
Filed July 19, 1973, Ser. No. 380,697
Term of patent 14 years 1m. (:1. D24-02, 99
US. Cl. D16-2 C FIG. 1 is a perspective view of a centrifuge rotor showing the new design.
FIG. 2 is a top plan thereof.
FIG. 3 is a side view.
FIG. 4 is a bottom plan view.
The ornamental design for centrifuge rotor, substantially as shown.
References Cited UNITED STATES PATENTS D. 193,981 11/1962 Asnes et al. D16--2 C 2,883,103 4/1959 Whitehead et a]. 233-27 OTHER REFERENCES Scientific Glass Cat., 1966, p. 196, item No. (3-3023-3, centrifuge head.
Scientific Glass Cat, 1962, p. 210, item No. 0-2804,
Central Scientific Co. Cat, J-300, 1961, p. 78, item No. 11778, angle head.
BERNARD ANSHER, Primary Examiner