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United States Patent D401,691
Koros ,   et al. November 24, 1998

Surgical instrument used in back surgery


The ornamental design for a surgical instrument used in back surgery, as shown and described.
Inventors: Koros; Tibor (Moorpark, CA), Koros; Gabriel (Moorpark, CA)
Appl. No.: D/070,518
Filed: May 9, 1997

Current U.S. Class: D24/144
Current International Class: 2402
Field of Search: D24/108,111,112,133,144 128/750,752,217,6,303.14 604/35,34,19,27,902,250,275,119,48,73,45,33,118 606/167,170

References Cited

U.S. Patent Documents
D251608 April 1979 Cawood, Jr. et al.
D353886 December 1994 Bales et al.
D378611 March 1997 Croley
2200322 May 1940 Arnesen
4400168 August 1983 Buechel et al.
5230704 July 1993 Moberg et al.
5254117 October 1993 Rigby et al.
Primary Examiner: Burgess; Pamela
Attorney, Agent or Firm: Slehofer; Richard


FIG. 1 is a front elevational view of a surgical instrument used in back surgery showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

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