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United States Patent D799,577
Ushio ,   et al. October 10, 2017

Dark field illumination device for microscope


CLAIM The ornamental design for a dark field illumination device for microscope, as shown and described.
Inventors: Ushio; Mariko (Hachioji, JP), Kan; Kazuhiro (Kunitachi, JP)
Name City State Country Type




Appl. No.: D/563,960
Filed: May 10, 2016

Foreign Application Priority Data

Nov 11, 2015 [JP] 2015-025194

Current U.S. Class: D16/136
Current International Class: 1606
Field of Search: ;D24/138 ;D26/37,62 ;D16/130-136

References Cited [Referenced By]

U.S. Patent Documents
1285382 November 1918 Renshaw
D95065 April 1935 Price
2065307 December 1936 Fullmer
D299173 December 1988 Powell
D314632 February 1991 Van Brunschot
D331934 December 1992 Tak
D349295 August 1994 Weidemann
D361855 August 1995 Jones
D447159 August 2001 Yoneda
D595875 July 2009 Irvine
D612963 March 2010 Oki
D639469 June 2011 Zhuang
D648054 November 2011 Zhuang
D651731 January 2012 Xu
D710817 August 2014 Ushio
D733950 July 2015 Wu
D740985 October 2015 Dooley
D753855 April 2016 Cacciabeve
D753856 April 2016 Iwaki
2016/0165346 June 2016 Ushio
Foreign Patent Documents
H06-068019 Sep 1994 JP
2002-148520 May 2002 JP

Other References

Japanese Notice dated Apr. 26, 2016 in related Japanese Patent Application No. 2015-025194. cited by applicant.

Primary Examiner: Goodman; Eric
Assistant Examiner: Campbell; Jennifer
Attorney, Agent or Firm: Scully, Scott, Murphy & Presser, P.C.


FIG. 1 is a bottom, rear and left side perspective view of a dark field illumination device for microscope, showing our new design;

FIG. 2 is top, front and right side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a cross-sectional view taken along a line 9-9 in FIG. 6 in which the internal mechanisms are omitted to better illustrate the contour thereof; and,

FIG. 10 is a perspective view of the dark field illumination device for microscope inserted into a microscope.

The dash dot broken lines in FIG. 9 depict portions of the dark field illumination device for microscope that form no part of the claimed design. The evenly segmented broken lines in FIG. 10 depict environmental subject matter only and form no part of the claimed design.

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