US2725834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clinker discharge device for combustion apparatus
Assignee: Babcock and Wilcox Co
•
Filing: 1952-03-26
•
Granted: 1955-12-06
•
Expires: 1972-03-26
Abstract
No abstract record available.
Inventors
- 👤 Richter-Glier Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:42
CPC Classifications
F; F23; F23J; F23J1/00; F23J1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1207019A
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GB197847A
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DE473341C
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GB275411A
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US2013680A
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US2037990A
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US2068450A
Cited
DE709692C
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US2280944A
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FR978855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |