US2744477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incinerator
Assignee: PACIFIC FOUNDRY Co Ltd
•
Filing: 1951-12-08
•
Granted: 1956-05-08
•
Expires: 1971-12-08
Abstract
No abstract record available.
Inventors
- 👤 Henry J Hartley
- 👤 Clarence S Rankin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:54
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/24; F23G5/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US471617A
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GB191512708A
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US1775565A
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US1825947A
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US1773256A
Cited
US1995723A
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US1842782A
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US2116976A
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US2136451A
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US2118208A
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US2239246A
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US2232556A
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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) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |