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US2498170A
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US
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Propeller blades
Assignee: Individual
•
Filing: 1946-06-04
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Granted: 1950-02-21
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Expires: 1966-06-04
Abstract
No abstract record available.
Inventors
- 👤 Meier Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:51
CPC Classifications
B; B63; B63H; B63H1/00; B63H1/02; B63H1/12; B63H1/14; B63H1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US675477A
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US914857A
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US971409A
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US997587A
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US1244786A
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US1066988A
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US1446011A
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US1758560A
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US1793339A
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US2099229A
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US2327453A
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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) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |