Patent US3051440A successfully refreshed from Google Patents.
US3051440A
Expired / Lapsed
US
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Air driven turbines
Assignee: Lucas Support Services Ltd
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Filing: 1960-07-20
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Granted: 1962-08-28
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Expires: 1980-07-20
Abstract
No abstract record available.
Inventors
- 👤 Chandler Robert Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:59
CPC Classifications
F; F01; F01D; F01D21/00; F01D21/04; F01D21/045; F01D5/00; F01D5/30; F01D5/3023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE342900C
Cited
US1469045A
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US1634897A
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GB532372A
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GB537455A
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US2310412A
Cited
US2349187A
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DE837495C
Cited
US2965355A
Cited
US2942843A
Cited
FR1223925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |