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Patent US3457436A successfully refreshed from Google Patents.
US3457436A
Expired / Lapsed
US
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Heat pipes with unique radiator configuration in combination with thermoionic converters
Assignee: Teledyne Inc
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Filing: 1966-11-07
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Granted: 1969-07-22
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Expires: 1986-11-07
Abstract
No abstract record available.
Inventors
- 👤 William J Levedahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:57
CPC Classifications
G; G21; G21H; G21H1/00; G21H1/10; G21H1/106; H; H01; H01J; H01J45/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3229759A
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US3243613A
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US3279028A
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US3368084A
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US3402767A
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US3302042A
Cited
US3305005A
Cited
US3378449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |