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Class Information
Number: 400/472
Name: Typewriting machines > Key-board or key lever-actuating mechanism
Description: Subject matter wherein significance is attributed to (a) the key-board* of a typewriter, or (b) one or more of the key* elements of the typewriter, or (c) a key lever, which key lever is a fulcrumed bar that is moved by the pressing of a key element is connected to a mechanism that causes relative movement between a type-face* or a type-die* and a record-medium* to effect record-medium, or which bar is connected to a mechanism to initiate or cause the operation of a function* of the typewriter, or (d) means for effecting the pressing of one or more key elements.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7594772 |
Keyboard with distance-adjustable keys |
Sep. 29, 2009 |
| 7572078 |
Electronic key depth sensing device and method for interpreting keystroke levels of the device |
Aug. 11, 2009 |
| 7561685 |
Handheld electronic device with keyboard |
Jul. 14, 2009 |
| 7540675 |
Foldable keyboard |
Jun. 2, 2009 |
| 7525792 |
Electronic apparatus provided with housing having liquid proof structure |
Apr. 28, 2009 |
| 7517164 |
Computer keyboard with a planar member and endless belt feed mechanism |
Apr. 14, 2009 |
| 7518856 |
Electronic apparatus and component scale adjusting device thereof |
Apr. 14, 2009 |
| 7510342 |
Washable keyboard |
Mar. 31, 2009 |
| 7507043 |
Ergonomic keyboard |
Mar. 24, 2009 |
| 7503713 |
Accessible technology keyboard |
Mar. 17, 2009 |
| 7505798 |
Angular keyboard for a handheld mobile communication device |
Mar. 17, 2009 |
| 7495657 |
Keyboard |
Feb. 24, 2009 |
| 7460050 |
Controlling device using cues to convey information |
Dec. 2, 2008 |
| 7439959 |
Key arrangement for a keyboard |
Oct. 21, 2008 |
| 7433177 |
Keyboard with recharge function |
Oct. 7, 2008 |
| 7420477 |
Method for an enhanced absolute position sensor system |
Sep. 2, 2008 |
| 7404682 |
Thin keypad assemblies and components for electronics devices and methods |
Jul. 29, 2008 |
| 7403378 |
Portable computer |
Jul. 22, 2008 |
| 7393149 |
Compact input device for entering data |
Jul. 1, 2008 |
| 7393151 |
Portable computer keyboard |
Jul. 1, 2008 |
| 7387457 |
One-row keyboard and approximate typing |
Jun. 17, 2008 |
| 7385808 |
Electronic apparatus with keyboard |
Jun. 10, 2008 |
| 7382356 |
Input unit for games and musical keyboards |
Jun. 3, 2008 |
| 7375297 |
Method and apparatus to improve tactile feel for keyboards and button assemblies |
May. 20, 2008 |
| 7367729 |
Printer within a computer keyboard |
May. 6, 2008 |
| 7365967 |
Collapsible structures having enhancements |
Apr. 29, 2008 |
| 7360957 |
Thin keypad assemblies and components for electronics devices and methods |
Apr. 22, 2008 |
| 7354209 |
Input apparatus for people having small hands |
Apr. 8, 2008 |
| 7345598 |
Electronic device with keyboard system and method of detecting key conditions thereof |
Mar. 18, 2008 |
| 7331727 |
Selectively illuminated key chambers |
Feb. 19, 2008 |
| 7326864 |
Method and apparatus for masking keystroke sounds from computer keyboards |
Feb. 5, 2008 |
| 7322759 |
Keyboard apparatus |
Jan. 29, 2008 |
| 7311454 |
Mobile device |
Dec. 25, 2007 |
| 7311455 |
Keyboard for minimizing non-productive hand movements |
Dec. 25, 2007 |
| 7312410 |
Reduced qwerty keyboard system that provides better accuracy and associated method |
Dec. 25, 2007 |
| 7310053 |
Compressed standardized keyboard |
Dec. 18, 2007 |
| 7289043 |
Portable terminal device and control method of the same |
Oct. 30, 2007 |
| 7278796 |
Keyboard for a computer system |
Oct. 9, 2007 |
| 7273324 |
Adjustable wearable ergonomic split keyboard and mouse |
Sep. 25, 2007 |
| 7270492 |
Computer system having integrated printer and keyboard |
Sep. 18, 2007 |
| 7261481 |
UV feature illumination |
Aug. 28, 2007 |
| 7255502 |
Keyboard with improved function and editing sections |
Aug. 14, 2007 |
| 7255503 |
Dual numerical keyboard based on dominance |
Aug. 14, 2007 |
| 7252444 |
Switch configuration |
Aug. 7, 2007 |
| 7254012 |
Keyboard having a lifting lid and a replaceable panel |
Aug. 7, 2007 |
| 7229227 |
Keyboard with improved lateral region |
Jun. 12, 2007 |
| 7220925 |
Inputting apparatus |
May. 22, 2007 |
| 7217048 |
Pagewidth printer and computer keyboard combination |
May. 15, 2007 |
| 7213991 |
Flexible foldable keyboard |
May. 8, 2007 |
| 7194611 |
Method and system for navigation using media transport controls |
Mar. 20, 2007 |
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