US4153822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone set
Assignee: Oki Electric Industry Co Ltd
•
Filing: 1978-02-23
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Granted: 1979-05-08
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Expires: 1998-02-23
Abstract
Abstract A telephone set for use in a vehicle having a handset housing with a cramp-like shape with a transmitter microphone on one end and a receiver on the other end, and a detachable dial plate for dialing on the dorsal part of the handset housing approximately behind the receiver. Said dial plate has a groove on either side that fits in with the projection provided on the handset housing. The handset housing has a pin for securing the dial plate, which has a hole for receiving the pin. The arrangement of the pin and the hole provides plug-in facility of the dial plate in the handset. A driver of a vehicle can handle the telephone set with a single hand.
Inventors
- 👤 Joji Ueda
- 👤 Hisao Fukushima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:02
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/0202; H04M1/0254; H04M1/04; H04M1/06; H04M1/0256
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
75 words
A telephone set comprising a handset housing with a cramp-shape configuration with a transmitter microphone on one end and a receiver on the other end and a detachable plug-in push button type dial for dialing plugged in and slidably mounted on the dorsal part of the handset housing approximately behind the receiver, said handset having a pair of guide projections and said dial having a pair of grooves positioned to fit with said guide projections.
Claim 2
Dependent Claim
75 words
A telephone set comprising a handset housing with a cramp-shape configuration with a transmitter microphone on one end and a receiver on the other end and a detachable plug-in push button type dial for dialing plugged in and slidably mounted on the dorsal part of the handset housing approximately behind the receiver, said handset having a pair of guide projections and said dial having a pair of grooves positioned to fit with said guide projections.
Claim 3
Dependent Claim
96 words
A telephone set comprising a handset housing of a cramp-shape configuration with a transmitter microphone on one end and a receiver on the other end, said handset housing having spaced guide projections on its dorsal side, a detachable rectangular plug-in push button type dial plugged into the dorsal part of the handset housing, said push button type dial having a linear groove on each side, which grooves fit in with said guide projections, said handset housing having a pin for securing said push button type dial, said dial having a hole which engages with said pin.
Claim 4
Dependent Claim
96 words
A telephone set comprising a handset housing of a cramp-shape configuration with a transmitter microphone on one end and a receiver on the other end, said handset housing having spaced guide projections on its dorsal side, a detachable rectangular plug-in push button type dial plugged into the dorsal part of the handset housing, said push button type dial having a linear groove on each side, which grooves fit in with said guide projections, said handset housing having a pin for securing said push button type dial, said dial having a hole which engages with said pin.
Claim 5
Dependent Claim
26 words
A telephone set according to claim 2, wherein said push button type dial has terminals at its rear surface for electrical connection to said handset housing.
Claim 6
Dependent Claim
44 words
A telephone set according to claim 2, wherein said handset housing has a pair of jaws at the inner sides of the microphone and the receiver, and said jaws fit with a pair of spring loaded projections of a cradle installed on a wall.
Claim 7
Dependent Claim
45 words
A telephone set according to claim 2, wherein said handset housing has a pair of jaws at the inner sides of the microphone and the receiver, and said jaws fit with a pair of projections mounted on sheet springs of a cradle on a desk.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |