US3022038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves for controlling gas streams flowing at very low flow rates
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
•
Filing: 1957-12-04
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Granted: 1962-02-20
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Expires: 1977-12-04
Abstract
No abstract record available.
Inventors
- 👤 Roubeau Pierre Maurice
- 👤 Garin Jean Marie
- 👤 Prugne Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:41
CPC Classifications
F; F04; F04F; F04F9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1193011A
Cited
US1380950A
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US2373324A
Cited
GB555716A
Cited
US2623787A
Cited
US2647017A
Cited
US2608996A
Cited
US2769608A
Cited
US2865591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |