Patent US5224060A successfully refreshed from Google Patents.
US5224060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile computer with pen base/keyboard input modes
Assignee: Individual
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Filing: 1992-07-29
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Granted: 1993-06-29
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Expires: 2012-07-29
Abstract
Abstract A mobile computer includes a liquid display unit pivoted to a mainframe unit consisted of a keyboard, a floppy diskdrive, a hard diskdrive, a battery power supply and a mother board circuit assembly, wherein the liquid crystal display unit is consisted of a display board revolvably fastened inside a rectangular frame by stub tubes and has a penbase input circuit inserted through the stub tubes for connecting a penbase so that data entry can be made through a penbase as the display board is turned upside down on the rectangular frame.
Inventors
- 👤 Hsi-Kuang Ma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:38
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/16; G06F1/1613; G06F1/1615; G06F1/1616; G06F1/162
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
84 words
A mobile computer comprising a liquid display unit pivoted to a mainframe unit consisted of a keyboard, a floppy diskdrive, a hard diskdrive, a battery power supply and a mother board circuit assembly, wherein said liquid crystal display unit is comprised of a display board revolvably fastened inside a frame by stub tubes, said display board having a penbase input circuit inserted through said stub tubes for connecting a penbase and being turned upside down on said frame for data entry by said penbase.
Claim 2
Dependent Claim
84 words
A mobile computer comprising a liquid display unit pivoted to a mainframe unit consisted of a keyboard, a floppy diskdrive, a hard diskdrive, a battery power supply and a mother board circuit assembly, wherein said liquid crystal display unit is comprised of a display board revolvably fastened inside a frame by stub tubes, said display board having a penbase input circuit inserted through said stub tubes for connecting a penbase and being turned upside down on said frame for data entry by said penbase.
Claim 3
Dependent Claim
39 words
The mobile computer according to claim 1, wherein said frame has fasteners on an inner side on two opposite locations for fastening to respective fasteners on said keyboard as said liquid crystal display unit is closed on said keyboard.
References Cited (Backward Citations)
US4859092A
Cited
US5103376A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-28 | 1996-12-28 | 1997-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-28 | 2000-12-28 | 2001-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-28 | 2004-12-28 | 2005-06-29 | $7700.00 | Window Closed / Lapsed |