US2556736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deicing system for aircraft
Assignee: Curtiss Wright Corp
•
Filing: 1945-06-22
•
Granted: 1951-06-12
•
Expires: 1965-06-22
Abstract
No abstract record available.
Inventors
- 👤 Everett P Palmatier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:27
CPC Classifications
B; B64; B64D; B64D15/00; B64D15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB137082A
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US1827276A
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US1821776A
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FR687481A
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US1932681A
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US2119806A
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US2046521A
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US2160397A
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US2256393A
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US2142699A
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US2320870A
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US2272358A
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US2469480A
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US2478878A
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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) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |