Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUSD231981 S
Publication typeGrant
Publication date2 Jul 1974
Filing date19 Jul 1973
Publication numberUS D231981 S, US D231981S, US-S-D231981, USD231981 S, USD231981S
InventorsW. Charles Paulsen
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Centrifuge rotor
US D231981 S
Abstract  available in
Previous page
Next page
Claims  available in
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,

Newtown, Conn;

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.

I claim:

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,

centrifuge head.

Central Scientific Co. Cat, J-300, 1961, p. 78, item No. 11778, angle head.

BERNARD ANSHER, Primary Examiner