Calibration apparatus

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Description

FIG. 1 is a front perspective view of a calibration apparatus, showing our new design;

FIG. 2 is a back perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a back elevation view thereof;

FIG. 6 is a left side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines immediately adjacent to the claim, represent the bounds of the claim while all other broken lines are directed to environment; the broken lines form no part of the claimed design.

Claims

We claim the ornamental design for a calibration apparatus, as shown and described.

Referenced Cited
U.S. Patent Documents
5987960 November 23, 1999 Messner et al.
6306126 October 23, 2001 Moctezuma
6996487 February 7, 2006 Jutras
7043961 May 16, 2006 Pandey et al.
D788915 June 6, 2017 Kheradpir
D794787 August 15, 2017 Kheradpir
20010051761 December 13, 2001 Khadem
20110082467 April 7, 2011 Tien et al.
Foreign Patent Documents
205215354 May 2016 CN
WO-0167979 September 2001 WO
WO-2016058078 April 2016 WO
Other references
  • International Search Report and Written Opinion dated Aug. 30, 2017, by ISA, re PCT International Patent Application No. PCT/IB2017/051604.
Patent History
Patent number: D820983
Type: Grant
Filed: Dec 22, 2016
Date of Patent: Jun 19, 2018
Inventors: Leila Kheradpir (Toronto), Kyle Richard Dupont (Toronto), Jakub Jankowski (Toronto), Suman Uthayanathan (Toronto)
Primary Examiner: Antoine Duval Davis
Application Number: 29/588,647
Classifications