Patent US3490733A successfully refreshed from Google Patents.
US3490733A
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US
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Valve operating device
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1968-07-08
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Granted: 1970-01-20
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Expires: 1988-07-08
Abstract
No abstract record available.
Inventors
- 👤 Jean Berthaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:51
CPC Classifications
G; G21; G21F; G21F7/00; G21F7/06; G21F7/066; F; F15; F15B; F15B15/00; F15B15/08; F15B15/10; F15B15/103; F16; F16K; F16K31/00; F16K31/12; F16K31/16; F16K31/165; F16K31/1655; F16K7/00; F16K7/02; F16K7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1500052A
Cited
US3233623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |