US2586416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas conversion apparatus
Assignee: Individual
•
Filing: 1947-09-15
•
Granted: 1952-02-19
•
Expires: 1967-09-15
Abstract
No abstract record available.
Inventors
- 👤 Daniel F Buckley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:34
CPC Classifications
F; F23; F23K; F23K5/00; F23K5/02; F23K5/14; F23K5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US551546A
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US968233A
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US799949A
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US906276A
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US994135A
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US1066295A
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US1357598A
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US1603824A
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US1747613A
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US2084297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |