US4980676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic apparatus with keyboard
Assignee: Lenovo Singapore Pte Ltd
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Filing: 1989-09-14
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Granted: 1990-12-25
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Expires: 2009-09-14
Abstract
Abstract A pair of leg members, each of which has a front end forming a curved surface and a recess formed to continue the front end, are provided on both sides of a keyboard respectively, a bottom is formed so that it projects forward at the lower portion of the case, and a pair of recesses are provided on both sides of the bottom respectively. Each of recesses has a receiving surface, on which the curved surface of the front end of the leg members can slide, and an end, which can fit into the recess of the leg member. When the keyboard is pivoted from the upright position to a surface on which an electronic apparatus is positioned, on a predetermined point of the leg member as a fulcrum by sliding the curved surface of the front end of the leg members on the receiving surface formed on the recess in the bottom, the recess in the leg member is fitted into the end of the recess in the bottom to provide a predetermined angle for the keyboard.
Inventors
- 👤 Hideo Nomura
- 👤 Motoji Takemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:02
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/16; G06F1/1613; G06F1/1633; G06F1/1662; G06F1/1669; G06F1/1615; G06F1/1616; G06F1/1656; G06F1/1667; Y; Y10; Y10S; Y10S248/00; Y10S248/917; Y10S248/918
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
241 words
An electronic apparatus with a keyboard in which the keyboard can be mounted in the upright position on a case in such a manner that the surface mounted with keys of the keyboard faces inside, comprising: a pair of leg members, one of which is provided on one side of said keyboard, the other of which is provided on the other side of said keyboard, each of which has a front end forming a curved surface and a recess formed to continue said front end, a bottom formed at the lower portion of said case to project forward from each side of said case, and a pair of recesses formed at each side of said bottom, each of which has a receiving surface, on which the curved surface of the front end of said leg member can slide, and an end capable to fit into the recess in said leg member, said keyboard is pivoted from the upright position to a surface on which said electronic apparatus is positioned, and a predetermined point of said leg member as a fulcrum and sliding the curved surface of the front end of said leg member on the receiving surface on the recess formed in said bottom, when said keyboard reaches said surface on which electronic apparatus is positioned, the recess in said leg member is fitted into the end of the recess in said bottom to hold a predetermined inclination for said keyboard.
Claim 2
Dependent Claim
241 words
An electronic apparatus with a keyboard in which the keyboard can be mounted in the upright position on a case in such a manner that the surface mounted with keys of the keyboard faces inside, comprising: a pair of leg members, one of which is provided on one side of said keyboard, the other of which is provided on the other side of said keyboard, each of which has a front end forming a curved surface and a recess formed to continue said front end, a bottom formed at the lower portion of said case to project forward from each side of said case, and a pair of recesses formed at each side of said bottom, each of which has a receiving surface, on which the curved surface of the front end of said leg member can slide, and an end capable to fit into the recess in said leg member, said keyboard is pivoted from the upright position to a surface on which said electronic apparatus is positioned, and a predetermined point of said leg member as a fulcrum and sliding the curved surface of the front end of said leg member on the receiving surface on the recess formed in said bottom, when said keyboard reaches said surface on which electronic apparatus is positioned, the recess in said leg member is fitted into the end of the recess in said bottom to hold a predetermined inclination for said keyboard.
Claim 3
Dependent Claim
17 words
An electronic apparatus with a keyboard claimed in claim 1, wherein said electronic apparatus is a computer.
Claim 4
Dependent Claim
26 words
An electronic apparatus with a keyboard claimed in claim 1, wherein a side of the curved front end of said leg member has a round shape.
Claim 5
Dependent Claim
22 words
An electronic apparatus with a keyboard claimed in claim 1, wherein said leg member projects from the rear end of said keyboard.
Claim 6
Dependent Claim
20 words
An electronic apparatus with a keyboard claimed in claim 1, wherein said leg member is rotatably mounted on said keyboard.
Claim 7
Dependent Claim
54 words
An electronic apparatus with a keyboard claimed in claim 1, wherein a projection is provided on the rear end of said keyboard, a power switch being mounted on the top surface of said bottom, whereby said projection turns off said power switch when said keyboard is mounted in the upright position on said case.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-24 | 1994-06-25 | 1994-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-24 | 1998-06-25 | 1998-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-24 | 2002-06-25 | 2002-12-25 | $7700.00 | Window Closed / Lapsed |