US2625138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stand boiler with vertical fire tubes and horizontal water baffles
Assignee: Individual
•
Filing: 1951-01-02
•
Granted: 1953-01-13
•
Expires: 1971-01-02
Abstract
No abstract record available.
Inventors
- 👤 Samuel J Jacoby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:24
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/18; F24H1/20; F24H1/205
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US104511A
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US948835A
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US681244A
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US721310A
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US890237A
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US1609822A
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US1641999A
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US1900857A
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US2066190A
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US2440998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |