Patent US3406759A successfully refreshed from Google Patents.
US3406759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controllable pitch propeller
Assignee: Individual
•
Filing: 1967-08-15
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Granted: 1968-10-22
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Expires: 1987-08-15
Abstract
No abstract record available.
Inventors
- 👤 Nutku Ata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:18
CPC Classifications
B; B63; B63H; B63H3/00; B63H3/02; B63H3/04; B63H1/00; B63H1/02; B63H1/12; B63H1/14; B63H1/28; B63H11/00; B63H11/12; B63H3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA505082A
Cited
GB189811668A
Cited
FR423590A
Cited
GB581037A
Cited
FR1188483A
Cited
US3253660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |