Patent US2686069A successfully refreshed from Google Patents.
US2686069A
Expired / Lapsed
US
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Ship propeller key construction
Assignee: Individual
•
Filing: 1950-08-11
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Granted: 1954-08-10
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Expires: 1970-08-11
Abstract
No abstract record available.
Inventors
- 👤 Hastie Christopher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:18
CPC Classifications
B; B63; B63H; B63H1/00; B63H1/02; B63H1/12; B63H1/14; B63H1/20; F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0876; B63H23/00; B63H23/32; B63H23/34; B63H2023/342; F16B; F16B2200/00; F16B2200/20; F16B2200/205; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/948
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1293872A
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US1340032A
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US1760955A
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US1849186A
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US1813193A
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US1909500A
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US2041123A
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US2149008A
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US2480958A
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US2514242A
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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) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |