Patent US2423110A successfully refreshed from Google Patents.
US2423110A
Expired / Lapsed
US
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Spreader stoker apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1943-09-30
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Granted: 1947-07-01
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Expires: 1963-09-30
Abstract
No abstract record available.
Inventors
- 👤 Donald J Mosshart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:37
CPC Classifications
F; F23; F23K; F23K3/00; F23K3/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1325589A
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FR330203A
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US988491A
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US1153156A
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US1436794A
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US1686131A
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US2001152A
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US1936962A
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US2163825A
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US2146469A
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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) | 1950-06-30 | 1950-12-30 | 1951-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-30 | 1954-12-30 | 1955-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-30 | 1958-12-30 | 1959-07-01 | $7700.00 | Window Closed / Lapsed |