Set of trigonometry calculator keys

Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective front view of the set of trigonometry calculator keys, showing my new design;

FIG. 2 is a front side view thereof;

FIG. 3 is a rear side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a top view thereof.

The broken lines in the drawings depict the bounds of the claim, which extends to the boundary but does not include the boundary.

Claims

The ornamental design for set of trigonometry calculator keys, as shown and described.

Referenced Cited
U.S. Patent Documents
3235055 February 1966 Pagenkopf
3973113 August 3, 1976 Goldsamt
3979057 September 7, 1976 Katz
3979058 September 7, 1976 Katz
4059750 November 22, 1977 Dickinson et al.
4142236 February 27, 1979 Martz
4202038 May 6, 1980 Petersson
D261773 November 10, 1981 Ichikawa et al.
4412473 November 1, 1983 Laflamme
4488250 December 11, 1984 Lipsey
4935889 June 19, 1990 Harada et al.
D309729 August 7, 1990 Tanabe
5079732 January 7, 1992 Koumo et al.
D354751 January 24, 1995 Hersh
5381353 January 10, 1995 Oba
D357920 May 2, 1995 Davis
D368708 April 9, 1996 Maynard
D380737 July 8, 1997 Weir
D386184 November 11, 1997 Heimburger
D389762 January 27, 1998 Yorkey
5836666 November 17, 1998 Aoyama
D434775 December 5, 2000 Tien
D478897 August 26, 2003 Tsuge
7096239 August 22, 2006 Bihun
7421461 September 2, 2008 Prokop
D581935 December 2, 2008 Merz
D588119 March 10, 2009 Griffin
D589048 March 24, 2009 Nossek
D603865 November 10, 2009 Jordan
D611482 March 9, 2010 Manalo
D612844 March 30, 2010 Andre
7748129 July 6, 2010 Kozlowski
D635610 April 5, 2011 Tenbrink
D671917 December 4, 2012 Gibbens, Jr.
D678278 March 19, 2013 Brown
D689493 September 10, 2013 Moore
D692867 November 5, 2013 Roka
D694762 December 3, 2013 Bristol
D696667 December 31, 2013 Helwig
D704717 May 13, 2014 Tanaka
D708174 July 1, 2014 Andre
D710840 August 12, 2014 Yamamoto
D715293 October 14, 2014 Li
D735212 July 28, 2015 Son
D738379 September 8, 2015 Ganey
D740831 October 13, 2015 Colby
20050033784 February 10, 2005 de Brebisson
20060277233 December 7, 2006 Miller
20070241929 October 18, 2007 Marchetto
20110173242 July 14, 2011 DeBrebisson
20110219051 September 8, 2011 Midorogi
20120068932 March 22, 2012 Griffin
Other references
  • SOH CAH TOA—trigonometry. mathopenref.com (online) 2 pages. 2011 [retrieved on May 5, 2016]. Retrieved from Internet: http://www.mathopenref.com/sohcahtoa.html.
  • SohCahToa. matemovil.com (online image) 2 pages. Uploaded Sep. 2015 [retrieved on May 6, 2016]. Retrieved from Internet: http://matemovil.com/razones-trigonometricas-en-el-triangulo-rectangulo-ejercicios-resueltos/ image address: http://matemovil.com/wp-content/uploads/2015/09/Razones-trigonométricas-en-el-triángulo-rectángulo-2.jpg.
  • http://www.softpedia.com/get/Science-CAD/DIY-calculator.shtml.
Patent History
Patent number: D766910
Type: Grant
Filed: Nov 11, 2014
Date of Patent: Sep 20, 2016
Inventor: Albert E. Packulak (Saskatoon)
Primary Examiner: Susan Bennett Hattan
Assistant Examiner: Marie Fast Horse
Application Number: 29/508,793
Classifications