Patent US3673449A successfully refreshed from Google Patents.
US3673449A
Expired / Lapsed
US
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Channel amplifying device comprising a plurality of coupled channel plates
Assignee: US Philips Corp
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Filing: 1970-04-01
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Granted: 1972-06-27
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Expires: 1990-04-01
Abstract
Abstract A channel amplifying device comprising a plurality of coupled channel plates, the diameters of the channels on either side of the coupling area being different from each other, one channel of one of the channel plates opening out in a plurality of channels of the channel plate coupled therewith.
Inventors
- 👤 Gilbert Eschard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:41
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/24
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
67 words
A channel amplifying device comprising an output channel plate having output channels, and an input channel plate having input channels, said input channel plate being coupled to said output channel plate, said input channels each having a diameter which is larger than the diameter of said output channels, the ratio of said diameters of said input channels to said output channels being between about 1.5 and 5.0.
Claim 2
Dependent Claim
67 words
A channel amplifying device comprising an output channel plate having output channels, and an input channel plate having input channels, said input channel plate being coupled to said output channel plate, said input channels each having a diameter which is larger than the diameter of said output channels, the ratio of said diameters of said input channels to said output channels being between about 1.5 and 5.0.
Claim 3
Dependent Claim
19 words
A channel amplifying device as described in claim 1, wherein said channel amplifying device is an electron amplifying tube.
Claim 4
Dependent Claim
20 words
A channel amplifier as claimed in claim 1 wherein the diameters of the input channels vary along their longitudinal axes.
References Cited (Backward Citations)
US3487258A
Cited
US3506868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |