Patent US2758204A successfully refreshed from Google Patents.
US2882940A
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Filling valves for liquefied gas lighters
Assignee: Nationale SA
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Filing: 1955-08-17
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Granted: 1959-04-21
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Expires: 1975-08-17
Abstract
No abstract record available.
Inventors
- 👤 Zellweger Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:01
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/34; F23Q2/52; F16; F16K; F16K21/00; F16K21/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2670499A
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US2769325A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |