US2594430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety cutoff system for gas
Assignee: —
•
Filing: —
•
Granted: 1952-04-29
•
Expires: 1969-04-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:10
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; F; F23; F23N; F23N1/00; F23N1/02; F23N1/027; F23N2235/00; F23N2235/12; F23N2235/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB448534A
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DE463150C
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US1856408A
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US1892115A
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US2070969A
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DE628621C
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US2291567A
Cited
FR786927A
Cited
US2147568A
Cited
US2263896A
Cited
US2335471A
Cited
US2538222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |