Sergey V Yefremov

age ~43

from Morganville, NJ

Also known as:
  • Sergey Yefremov
  • Yefremov Sergey
  • Sergey V
  • Claris Smith

Sergey Yefremov Phones & Addresses

  • Morganville, NJ
  • 3392 Guider Ave, Brooklyn, NY 11235 • 718 934-6216
  • 3054 Brighton 14Th St, Brooklyn, NY 11235 • 718 934-6216
  • Ashburn, VA
  • New York, NY

Us Patents

  • Keyboard With Illuminated Keys

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  • US Patent:
    20020071705, Jun 13, 2002
  • Filed:
    Dec 13, 2000
  • Appl. No.:
  • Inventors:
    Ralph Zilberman - Staten Island NY, US
    Sergey Yefremov - Brooklyn NY, US
  • International Classification:
  • US Classification:
    400/472000, 400/477000
  • Abstract:
    A keyboard with illuminated keys including a keyboard housing having a plurality of key recesses formed therein. A plurality of keys are received within the plurality of key recesses of the keyboard housing. The plurality of keys each have a generally square configuration. The keys each have an upper end and a lower end. The lower end has a pair of recesses formed therein. The recesses each have a light disposed therein. The upper end is divided into two sections. The two sections each correspond with one of the lights of the pair of recesses. Each of the two sections have illuminatable indicia disposed thereon. The plurality of keys include at least one shift key. The shift key controls the activation of the lights whereby a pressing of the shift key causes one of the lights to illuminate and a release of the shift key causes the other light to illuminate thereby illuminating the indicia of one of the sections at one time.


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