US2662241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soot blower of the short-travel retracting type
Assignee: Diamond Power Specialty Corp
•
Filing: 1947-08-05
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Granted: 1953-12-15
•
Expires: 1967-08-05
Abstract
No abstract record available.
Inventors
- 👤 Mart Le Roy S De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:21
CPC Classifications
F; F28; F28G; F28G1/00; F28G1/16; F28G1/166
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2249741A
Cited
US793834A
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US1677383A
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US2104003A
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US2144744A
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US2185450A
Cited
US2370782A
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US2442045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |