US3021049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tapered clamping ring for fan and improved hub design
Assignee: General Electric Co
•
Filing: 1957-01-31
•
Granted: 1962-02-13
•
Expires: 1977-01-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Settle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:57
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/263; Y; Y10; Y10T; Y10T403/00; Y10T403/53; Y10T403/535; Y10T403/70; Y10T403/7062; Y10T403/7064; Y10T403/7066; Y10T403/7067; Y10T403/7069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US234343A
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US1571735A
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US2405329A
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US2581872A
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US2464082A
Cited
US2669471A
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US2726106A
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US2869774A
Cited
US2869237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |