Acoustic feedback learning aid

Information

  • Patent Grant
  • D565659
  • Patent Number
    D565,659
  • Date Filed
    Monday, October 23, 2006
    18 years ago
  • Date Issued
    Tuesday, April 1, 2008
    16 years ago
  • US Classifications
    Field of Search
    • US
    • D19 59- 64
    • D19 41- 51
    • 434 295-296
    • 434 308-309
    • 434 433000
    • D14 158
    • D14 420-431
    • D14 346
    • D14 385
    • D14 453
    • 235 375000
    • 235 378000
    • 235 385000
    • 235 454000
    • 235 485000
    • 235 472010
    • D21 324
    • D21 329
    • D21 475
    • D21 517
  • International Classifications
    • 1907
    • Term of Grant
      14Years
Abstract
Description


FIG. 1 is a front perspective view of the acoustic feedback learning aid design;



FIG. 2 is a front plan view of the acoustic feedback learning aid design;



FIG. 3 is rear plan view of the acoustic feedback learning aid design;



FIG. 4 is a side elevation view of the acoustic feedback learning aid design, with the opposite side being symmetrical thereto;



FIG. 5 is top plan view of the acoustic feedback learning aid design; and,



FIG. 6 is a bottom plan view of the acoustic feedback learning aid design.


The broken line disclosures shown in the Figures of the acoustic feedback learning aid design are for illustrative purposes only and forms no part of the claimed design.


Claims
  • The ornamental design for acoustic feedback learning aid, as shown and described.
US Referenced Citations (9)
Number Name Date Kind
D261669 Tran et al. Nov 1981 S
D287145 Shilton et al. Dec 1986 S
D318306 Cheung Jul 1991 S
D406867 Wise et al. Mar 1999 S
D410046 Fletcher May 1999 S
D420404 Yiu Feb 2000 S
D420405 Plain et al. Feb 2000 S
D453793 Hou Feb 2002 S
D473203 Enos et al. Apr 2003 S