| |
 |
|
Class Information
Number: 400/493
Name: Typewriting machines > Key-board or key lever-actuating mechanism > Key-cap or key-stem structure > Including character-bearing disc on key cap
Description: Subject matter wherein said key* cap is provided with a thin, flat, circular component mounted on the top surface of the key cap, which component bears on its top surface an indicium representing the character* symbol that will be imprinted on the record-medium* when the key element bearing said key cap is pressed.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7334952 |
Staggered keyboard for a portable device |
Feb. 26, 2008 |
| 7220069 |
Staggered keyboard for a portable device |
May. 22, 2007 |
| 7097371 |
Keytop |
Aug. 29, 2006 |
| 7083343 |
Keyboard keys using marked elastic domes and fabrication method thereof |
Aug. 1, 2006 |
| 7073964 |
Staggered keyboard for a portable device |
Jul. 11, 2006 |
| 7040824 |
Gel-cushioned accessory for a keyboard |
May. 9, 2006 |
| 6967056 |
Key sheet |
Nov. 22, 2005 |
| 6883985 |
Printable, reusable key masks |
Apr. 26, 2005 |
| 6805506 |
Keyboard with multiple indicia sets |
Oct. 19, 2004 |
| 6761494 |
Button apparatus with a complex elastic unit |
Jul. 13, 2004 |
| 6658773 |
Label with luminescence inside |
Dec. 9, 2003 |
| 6419494 |
Error feedback system and method for correcting habitual keyboarding errors |
Jul. 16, 2002 |
| 6331083 |
Individual key covers for computer keyboards |
Dec. 18, 2001 |
| 5577849 |
Printing light indicia on keyboard keys |
Nov. 26, 1996 |
| 5290115 |
Cushioning means for keyboard keys |
Mar. 1, 1994 |
| 5183346 |
Keycap overlay snap-on system |
Feb. 2, 1993 |
| 4773783 |
Computer keyboard including attitude adjusting mechanism and a strip label |
Sep. 27, 1988 |
| 4680729 |
Method and apparatus for storing and updating user entered command strings for use with otherwise unassigned softkeys |
Jul. 14, 1987 |
| 4657419 |
Information carrier, having a roughened surface, method of manufacturing same, and apparatus therefor |
Apr. 14, 1987 |
| 4613247 |
Multiple format keyboard |
Sep. 23, 1986 |
| 4602878 |
Ideographic word processor |
Jul. 29, 1986 |
| 4512092 |
Replacement labels for keyboard |
Apr. 23, 1985 |
| 4500218 |
Keyboard key with embedded top character |
Feb. 19, 1985 |
| 4480932 |
Keyboard having rotationally positionable indicia for indicating type font in use |
Nov. 6, 1984 |
| 4336530 |
Thin keyboard with changeable key indicia |
Jun. 22, 1982 |
| 4100402 |
Keyboard key with changeable indicia |
Jul. 11, 1978 |
| 4039068 |
Keyboard of elastic material for office machines |
Aug. 2, 1977 |
| 3964594 |
Keyboard of elastic material for office machines |
Jun. 22, 1976 |
| 3934247 |
Alphanumeric display means for computer-linked typewriter consoles using a matrix array of light-emitting diodes (led's) |
Jan. 20, 1976 |
| 3934246 |
Alphanumeric display means for computer-linked typewriter consoles using light-emitting diodes (LED's) in conjunction with sets of fiber-optic matrix members |
Jan. 20, 1976 |
|
|
|
