Patent US3430206A successfully refreshed from Google Patents.
US3430206A
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Control systems for constant proportion mixtures
Assignee: Lignes Telegraphiques et Telephoniques LTT SA
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Filing: 1966-04-26
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Granted: 1969-02-25
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Expires: 1986-04-26
Abstract
No abstract record available.
Inventors
- 👤 Herbert Ernyei
- 👤 Philippe Huguier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:24
CPC Classifications
G; G01; G01F; G01F15/00; G01F15/07; G01F15/075; G01F15/0755; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/132; G05D11/135; G05D11/137
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2636672A
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US3135862A
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US2987704A
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US3158738A
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US3229078A
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US3324458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |