US2532447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually oscillatable and rotatable portable soot blower
Assignee: Diamond Power Specialty Corp
•
Filing: 1944-07-27
•
Granted: 1950-12-05
•
Expires: 1964-07-27
Abstract
No abstract record available.
Inventors
- 👤 Percy G Handoll
- 👤 Philip R Bettle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:40
CPC Classifications
F; F28; F28G; F28G15/00; F28G15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1102354A
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US1599283A
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US1511704A
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US1807255A
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US1661931A
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US1760589A
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US1780435A
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US2051069A
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US2089710A
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US2267194A
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US2350929A
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GB570902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |