Patent US3458745A successfully refreshed from Google Patents.
US3458745A
Expired / Lapsed
US
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Thin wafer-channel multiplier
Assignee: SRI International Inc
•
Filing: 1967-06-09
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Granted: 1969-07-29
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Expires: 1987-06-09
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Shoulders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:39
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/24; H01J43/246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2931914A
Cited
US2881384A
Cited
GB965044A
Cited
US3207937A
Cited
US3179834A
Cited
US3202854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |