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Publication numberUS2040248 A
Publication typeGrant
Publication dateMay 12, 1936
Filing dateMay 21, 1932
Priority dateMay 21, 1932
Publication numberUS 2040248 A, US 2040248A, US-A-2040248, US2040248 A, US2040248A
InventorsAugust Dvorak, Dealey William L
Original AssigneeAugust Dvorak, Dealey William L
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Typewriter keyboard
US 2040248 A
Images(1)
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Description  (OCR text may contain errors)
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3847263 *Mar 6, 1973Nov 12, 1974Box XEnglish keyboard scheme
US4031993 *Sep 25, 1975Jun 28, 1977Pitney-Bowes, Inc.Electronic embossing machine
US4211497 *Mar 13, 1978Jul 8, 1980Montgomery Edward BData input system
US4244659 *May 31, 1978Jan 13, 1981Malt Lillian GKeyboard arrangement
US4332493 *Jun 12, 1980Jun 1, 1982Harvey EinbinderTen-finger typewriter keyboards
US4333097 *Sep 12, 1980Jun 1, 1982Bell Telephone Laboratories, IncorporatedVisual display terminal without finger repositioning
US4519721 *Jul 5, 1983May 28, 1985Gardner Kathleen ETypewriter keyboard layout
US4579470 *Apr 11, 1984Apr 1, 1986Cullen CaseyKeyboard with keys concentrated in clusters
US4615629 *Apr 24, 1984Oct 7, 1986Power Daniel JInput keyboard
US4661005 *Jan 16, 1984Apr 28, 1987Creative AssociatesSpittable keyboard for word processing, typing and other information input systems
US4669903 *Apr 23, 1985Jun 2, 1987Stuart HerzogBio-mechanical keyboard structure and method
US4913573 *Aug 18, 1988Apr 3, 1990Retter Dale JAlpha-numeric keyboard
US4917516 *Aug 15, 1988Apr 17, 1990Retter Dale JCombination computer keyboard and mouse data entry system
US4927279 *Sep 11, 1989May 22, 1990Morgan Ruth BKeyboards for homes
US5003301 *Jun 23, 1988Mar 26, 1991Romberg Harvey DKey arrangement and method of inputting information from a key arrangement
US5124702 *Dec 19, 1990Jun 23, 1992Ardenne Robertus A M VanKeyboaard for a word typewriter
US5166669 *Mar 25, 1991Nov 24, 1992Romberg Harvey DKey arrangements and methods of use
US5352050 *Jul 27, 1992Oct 4, 1994Choate John I MKeyboard arrangement to maximize typing speed and ease of transition from a QWERTY keyboard
US5498088 *Jul 11, 1994Mar 12, 1996Choate; John I. M.Keyboard arrangement to maximize typing speed and ease of transition from a qwerty keyboard
US5557299 *May 4, 1994Sep 17, 1996Kidtech, Inc.Method and apparatus for a learning styled computer keyboard
US5584588 *Apr 21, 1995Dec 17, 1996Harbaugh; Gary B.Computer keyboard layout
US5610602 *Jun 7, 1995Mar 11, 1997Kinesis CorporationKeyboard and method for producing
US5673040 *Jun 2, 1993Sep 30, 1997Kinesis CorporationErgonomic keyboard apparatus
US5689253 *Apr 9, 1993Nov 18, 1997Kinesis CorporationErgonomic keyboard apparatus
US5836705 *Feb 1, 1996Nov 17, 1998Choate; John I. M.Keyboard arrangement to maximize typing speed and data entry and to ease transition from a qwerty keyboard
US5847697 *Jan 31, 1995Dec 8, 1998Fujitsu LimitedSingle-handed keyboard having keys with multiple characters and character ambiguity resolution logic
US5936555 *Jan 23, 1998Aug 10, 1999Zagnoev; AriCombined keyboard and mouse employing conventional typing keys
US5936556 *Jul 14, 1997Aug 10, 1999Sakita; MasamiKeyboard for inputting to computer means
US5993089 *Feb 3, 1997Nov 30, 1999Burrell, Iv; James William8-bit binary code for use as an 8-dot braille arrangement and data entry system and method for 8-key chordic binary keyboards
US6444888Mar 23, 2001Sep 3, 2002Vandruff DeanMusical computer keyboard apparatus and method
US6632038Dec 19, 2001Oct 14, 2003Douglas TrotmanKeyboard arrangement for easy acquisition of typing skills
US6932525 *Aug 16, 2003Aug 23, 2005Douglas L. TrotmanKeyboard arrangement for easy acquisition of typing skills
US7008127 *Jul 27, 2004Mar 7, 2006Kurriss Francis NKeyboard configuration system
US7104711Feb 27, 2006Sep 12, 2006Francis KurrissKeyboard configuration system
US7828489Jan 27, 2006Nov 9, 2010Kinesis CorporationKeyboard with a pair of pivotable keying modules
US8033744Jul 29, 2005Oct 11, 2011Paul Lloyd BakerKeyboard for a handheld computer device
US8200866 *Feb 17, 2005Jun 12, 2012Varia Holdings LlcReduced keypad for a mobile communication device for predictive input
US8289684Apr 19, 2007Oct 16, 2012Kinesis CorporationComputer keyboard
US8426713 *Sep 27, 2011Apr 23, 2013Philip SardoType piano
US8454254Nov 26, 2008Jun 4, 2013Kinesis CorporationSupport accessory for split keyboard
US8459885Mar 31, 2010Jun 11, 2013Byung Kon MinClock face keyboard
USRE43485Jul 2, 2009Jun 26, 2012Kinesis CorporationKeyboard
WO1985003035A1 *Jan 16, 1985Jul 18, 1985Roy Jeremy LahrSplittable keyboard for word processing, typing and other information input systems
WO1999006216A1 *May 29, 1998Feb 11, 1999Pittard Arthur GeorgeComputer keyboard with different letter layout
WO2004040429A2 *Sep 25, 2003May 13, 2004Wedding RikeA faster, practical keyboard
Classifications
U.S. Classification400/486
International ClassificationB41J5/00, B41J5/10
Cooperative ClassificationB41J5/10
European ClassificationB41J5/10