US3057154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
De-icer system for a gas turbine engine
Assignee: Rolls Royce PLC
•
Filing: 1960-07-07
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Granted: 1962-10-09
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Expires: 1980-07-07
Abstract
No abstract record available.
Inventors
- 👤 Sherlaw William
- 👤 Leheup Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:42
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; F02C7/047; B; B64; B64D; B64D15/00; B64D15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2618120A
Cited
GB637598A
Cited
US2600302A
Cited
US2655308A
Cited
US2594118A
Cited
US2712727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |