US2561389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Housing for burners
Assignee: Individual
•
Filing: 1946-02-15
•
Granted: 1951-07-24
•
Expires: 1966-02-15
Abstract
No abstract record available.
Inventors
- 👤 Bruno G Machniak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:18
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1855339A
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US2156359A
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US2205451A
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US2271690A
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US2267905A
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US2370891A
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US2488218A
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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) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |