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US2773349A
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US
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Infra-red fuel flow controller
Assignee: Shell Development Co
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Filing: 1953-04-28
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Granted: 1956-12-11
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Expires: 1973-04-28
Abstract
No abstract record available.
Inventors
- 👤 Francis G Bollo
- 👤 Lucretia M Whitney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:19
CPC Classifications
F; F02; F02D; F02D39/00; F02D39/02; F02K; F02K3/00; Y; Y10; Y10T; Y10T436/00; Y10T436/20; Y10T436/207497; Y10T436/208339
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1564553A
Cited
US1952005A
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US1900884A
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US2248090A
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US2369698A
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US2462995A
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US2545162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |