Prothrombin time determining unit
US D198785 S
Description (OCR text may contain errors)
United States Patent 0 lce fijifflif PROTHROMBIN TIME DETERMINING UNIT Robert H. McKim, Palo Alto, Calif., assignor to Oxford Laboratories, San Mateo, Cali, a corporation of California v Filed Mar. 25, 1963, Ser. No. 74,115
Term of patent 14 years (Cl. D16-2) FIGURE 1 is a front elevation of a prothrombin time determining unit, showing my new design;
FIGURE 2 is a side elevation thereof taken from the right of FIGURE 1; and
FIGURE 3 is a perspective view thereof, taken at a reduced scale with the elements shown in broken lines for illustrative purposes only.
The ornamental design for a prothrombin time determining unit, as shown and described.
PAGE 2 References Cited in the file of this patent D. 192,560 D. 195,027 D. 196,044
UNITED STATES PATENTS Rinaldi Apr. 10, 1962 Gulotta et a1. Apr. 16, 1963 Malk Aug. 20, 1963 Van Veen Feb. 27, 1962