Instrument for measuring tumors


FIG. 1 is a right side elevational view of an instrument for measuring tumors showing our new design;

FIG. 2 is a top plan view;

FIG. 3 is a bottom plan view;

FIG. 4 is a left side elevational view;

FIG. 5 is a front elevational view; and

FIG. 6 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D207553 May 1967 Yamamoto
D250578 December 19, 1978 Onuma
D264824 June 8, 1982 Sandel
3769712 November 1973 Hong
4228590 October 21, 1980 Kimura
4233743 November 18, 1980 Flick
4606128 August 19, 1986 Wyrwich et al.
4726121 February 23, 1988 Ray et al.
Foreign Patent Documents
738779 December 1932 FRX
14951 1905 GBX
Patent History
Patent number: D310044
Type: Grant
Filed: Apr 9, 1987
Date of Patent: Aug 21, 1990
Inventors: David S. Alberts (Tucson, AZ), Robert T. Dorr (Tucson, AZ)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Marshall, O'Toole, Gerstein, Murray & Bicknell
Application Number: 7/36,245
Current U.S. Class: Micrometer, Caliper Or Divider Type (D10/73); D24/17