US3824465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable tone decoder-encoder system
Assignee: International Mobile Machines Corp
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Filing: 1973-01-04
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Granted: 1974-07-16
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Expires: 1993-01-04
Abstract
Abstract A portable tone decoder-encoder receiver and transmitter device wherein a radio network is contained in a housing and is operatively connected to a touch-tone pad also within the housing. A pivoted hollow handle is connected to the housing and this handle contains a releasably positioned transmitter and receiver handset and an antenna, both being operatively connected to the network. The handle may be moved from a carrying position to an operative position, and, when in carrying position is releasably locked to the housing.
Inventors
- 👤 R Blough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:30
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04M; H04M1/00; H04M1/72; H04M1/725
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
171 words
A portable receiver and transmitter structural unit comprising a housing having an open side, a receiver and transmitter radio network within said housing, a touch tone pad in said housing operatively connected to said network, and a handle connected to said housing, said handle being hollow and having an open side, said handle being pivotally connected at one end thereof to said housing to permit pivotal movement of said handle into and out of closed position relative to said open side of said housing, said open side of said handle being in mating relationship with said open side of said housing when said handle is in said closed position, said handle having a latch means at the opposite end thereof, said latch means being in releasably latched engagement with said housing when said handle is in said closed position, and a receiver and transmitter handset releasably positioned within said hollow handle, said handset being insertable and removable into and out of said hollow handle through said open side of said handle.
Claim 2
Dependent Claim
171 words
A portable receiver and transmitter structural unit comprising a housing having an open side, a receiver and transmitter radio network within said housing, a touch tone pad in said housing operatively connected to said network, and a handle connected to said housing, said handle being hollow and having an open side, said handle being pivotally connected at one end thereof to said housing to permit pivotal movement of said handle into and out of closed position relative to said open side of said housing, said open side of said handle being in mating relationship with said open side of said housing when said handle is in said closed position, said handle having a latch means at the opposite end thereof, said latch means being in releasably latched engagement with said housing when said handle is in said closed position, and a receiver and transmitter handset releasably positioned within said hollow handle, said handset being insertable and removable into and out of said hollow handle through said open side of said handle.
Claim 3
Dependent Claim
21 words
The device of claim 1 wherein a radio-wave antenna is positioned in said handle and is operatively connected to said network.
Claim 4
Dependent Claim
45 words
The device of claim 1 wherein a switch is provided in said handle, said switch being operatively connected to said network and being normally closed, and said handset being arranged to open said switch by contact therewith when said handset is positioned within said handle.
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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |