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US6022156A Expired / Lapsed US ⏱️ 0.0 years remaining

Ergonomic keyboard

Assignee: Individual
•
Filing: 1993-12-10
•
Granted: 2000-02-08
•
Expires: 2013-12-10
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Abstract

Abstract A two piece computer keyboard (10). A right hand keyboard (20) contains alphabetic keys normally operated by the right hand of the computer operator. Left hand keyboard (30) contains keys normally operated by the left hand of the operator. Right keyboard (20) and left keyboard (30) are electrically connected by cord (60). The size of keyboards (20) and (30) have been reduced by using keys which allow some alphabetic keys to be used in a multi-function fashion. Num key (40) allows use of alphabetic keys as numbers. Arrow key (50) allows use of alphabetic keys as arrows. Function keys (46) allows use of alphabetic keys as function keys F1, F2, etc. Special function key (48) allows use of some alphabetic keys as print screen, scroll lock, etc.

Inventors

  • 👤 Nelson A. Blish

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 15:23
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/02; G06F3/0202; G06F3/0219; G06F1/00; G06F1/16; G06F1/1613; G06F1/1615; G06F1/1633; G06F1/1662; G06F1/1664; G06F1/1666; G06F3/0216; G06F3/0221; H; H01; H01H; H01H13/00; H01H13/70; H01H13/86; H01H2223/00; H01H2223/046; H01H2223/05

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 39 words
A segmented computer keyboard comprising: a right hand keyboard with a wrist restraint; a left hand keyboard with a wrist restraint; and wherein said left and right keyboards may be operated without resting the keyboard on a hard surface.
Claim 2
Dependent Claim 39 words
A segmented computer keyboard comprising: a right hand keyboard with a wrist restraint; a left hand keyboard with a wrist restraint; and wherein said left and right keyboards may be operated without resting the keyboard on a hard surface.

References Cited (Backward Citations)

FR491589A Cited
DE331043C Cited
US3093911A Cited
US4378553A Cited
US4522518A Cited
US4661005A Cited
US5122786A Cited
WO1992000851A1 Cited
US5212473A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2003-02-07 2003-08-09 2004-02-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2007-02-07 2007-08-09 2008-02-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2011-02-07 2011-08-09 2012-02-08 $7700.00 Window Closed / Lapsed

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