US2631178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Installation for reclaiming flue dust
Assignee: Individual
•
Filing: 1949-12-23
•
Granted: 1953-03-10
•
Expires: 1969-12-23
Abstract
No abstract record available.
Inventors
- 👤 George E Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:55
CPC Classifications
C; C21; C21B; C21B5/00; C21B5/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US780716A
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US995542A
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US1041363A
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US875332A
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US1800721A
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US2085625A
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US2074819A
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US2139065A
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US2351677A
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US2426643A
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US2402190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |