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Patent US2746532A successfully refreshed from Google Patents.
US2746532A
Expired / Lapsed
US
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Gas burner
Assignee: Individual
•
Filing: 1950-11-22
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Granted: 1956-05-22
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Expires: 1970-11-22
Abstract
No abstract record available.
Inventors
- 👤 Richard T Keating
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:27
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US2509896A
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US699281A
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CH65727A
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US1364094A
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US1642153A
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US1977947A
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US2376274A
Cited
US2400653A
Cited
US2474957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |