Light guide plate used in keyboard

Information

  • Patent Grant
  • D967507
  • Patent Number
    D967,507
  • Date Filed
    Thursday, December 17, 2020
    4 years ago
  • Date Issued
    Tuesday, October 18, 2022
    2 years ago
  • Inventors
    • Lee; Wen-Yu
    • Hsu; Chin-Hung
    • Chang; Yung-Shin
  • Original Assignees
  • Examiners
    • Kearney; Richard
    • Dodson; Christina M.
    Agents
    • Yang; Fei-Hung
  • US Classifications
    Field of Search
    • US
    • D26 24
    • D26 51
    • D26 61
    • D26 72
    • D26 74
    • D26 85
    • D26 86
    • D26 88
    • D26 89
    • D26 90
    • D26 91
    • D26 92
    • D26 113
    • D26 118
    • D26 120-123
    • CPC
    • F21S8/00
    • F21S8/006
    • F21S8/026
    • F21S8/04
    • F21S8/06
    • F21V3/00
    • F21V3/02
    • F21V7/00
    • F21V7/0008
    • F21V7/005
    • F21V7/0083
    • F21V7/04
    • F21V7/045
    • F21V7/05
    • F21V7/06
  • International Classifications
    • 2605
    • Term of Grant
      15Years
Abstract
Description


FIG. 1 is a perspective view of a light guide plate used in keyboard showing our new design;



FIG. 2 is a front elevational view thereof;



FIG. 3 is a rear elevational view thereof;



FIG. 4 is a left side view thereof;



FIG. 5 is a right side view thereof;



FIG. 6 is a top plan view thereof;



FIG. 7 is a bottom plan view thereof;



FIG. 8 is another perspective view thereof; and,



FIG. 9 is another front elevational view shown while in use.


The broken lines showing portions of the light guide plate used in keyboard depict portions of the article and form no part of the claimed design. The broken lines showing LEDs in FIG. 9 depict environmental structure and form no part of the claimed design. The center lines showing on the surface of the light guide plate used in keyboard depict the article is transparent.


Claims
  • The ornamental design for a light guide plate used in keyboard, as shown and described.
US Referenced Citations (12)
Number Name Date Kind
6924943 Minano Aug 2005 B2
7239444 Mizuno Jul 2007 B2
D564699 Nakashima Mar 2008 S
D608807 Chern Jan 2010 S
7648256 Shiratsuchi Jan 2010 B2
D623674 Wei Sep 2010 S
D681262 Lee Apr 2013 S
20040075994 Kuo Apr 2004 A1
20070165303 Osawa Jul 2007 A1
20100226022 Shen Sep 2010 A1
20110149418 Togino Jun 2011 A1
20140185322 Liao Jul 2014 A1
Non-Patent Literature Citations (2)
Entry
Graded-index Fresnel lenses for integrated optics, Copyright 1982, retrieved Aug. 1, 2022 from URL: https://opg.optica.org/ao/fulltext.cfm?uri=ao-21-11-1966&id=25843 (Year: 1982).
A review of recent advances in fabrication of optical Fresnel lenses, first available Nov. 2021, retrieved Aug. 1, 2022 from URL: https://www.sciencedirect.com/science/article/pii/S1526612521006721 (Year: 2021).