US5335273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable telephone and multifunctional protective housing therefor
Assignee: Fujitsu Ltd
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Filing: 1991-09-09
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Granted: 1994-08-02
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Expires: 2011-09-09
Abstract
Abstract A portable telephone having a cover to which a functional module such as an electronic calculator or a clock module is detachably mounted. The cover is rotatably mounted to a body of the portable telephone. Plural kinds of functional modules are replaceably mounted to the cover, thereby making the portable telephone multifunctional. Also disclosed herein is a construction that a multifunctional module mounting member is rotatably mounted to the body of the portable telephone, and a desired functional module is mounted to this mounting member by plug-in connection employing connectors.
Inventors
- 👤 Hisamitsu Takagi
- 👤 Akihide Nishiyama
- 👤 Masashi Tomura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:15
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/0202; H04M1/0206; H04M1/0208; H04M1/0214; H04M1/0216; H04M1/0254; H04M1/21; H04M1/72; H04M1/724; H04M1/72403; H04M1/72409; H04M1/724092
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
154 words
A portable telephone comprising: a body including a speaker, a microphone, and switch means; a cover rotatably mounted to said body, said cover being adapted to cover at least said switch means when said cover is in a closed condition; cover holding means for rotatably holding said cover with respect to said body, said cover holding means comprising: a cover mounting projection integrally formed with said body and having a pair of holes formed therein; a pair of shafts each respectively rotatably inserted through one of said holes, each of said shafts having a first end fixed to said cover and a second end having a plate portion; and a pair of U-shaped springs fixed to said body so as to respectively nip said plate portions of said shafts to maintain said cover at a stable position when said cover is in an open condition; and a functional module detachably mounted to said cover.
Claim 2
Dependent Claim
154 words
A portable telephone comprising: a body including a speaker, a microphone, and switch means; a cover rotatably mounted to said body, said cover being adapted to cover at least said switch means when said cover is in a closed condition; cover holding means for rotatably holding said cover with respect to said body, said cover holding means comprising: a cover mounting projection integrally formed with said body and having a pair of holes formed therein; a pair of shafts each respectively rotatably inserted through one of said holes, each of said shafts having a first end fixed to said cover and a second end having a plate portion; and a pair of U-shaped springs fixed to said body so as to respectively nip said plate portions of said shafts to maintain said cover at a stable position when said cover is in an open condition; and a functional module detachably mounted to said cover.
Claim 3
Dependent Claim
51 words
The portable telephone according to claim 1, wherein one of said cover and said body is provided with a light emitting device and the other of said cover and said body is provided with a light receiving device, whereby optical communication between said cover and said body can be carried out.
References Cited (Backward Citations)
US4153822A
Cited
JPS566544A
Cited
FR2538978A1
Cited
JPS617145A
Cited
JPS62185440A
Cited
EP0276403A2
Cited
US4897873A
Cited
JPH0385949A
Cited
US5024414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-08-01 | 1998-01-31 | 1998-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-01 | 2002-01-31 | 2002-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-01 | 2006-01-31 | 2006-08-02 | $7700.00 | Window Closed / Lapsed |