US2906495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine blade with corrugated strut
Assignee: Individual
•
Filing: 1955-04-29
•
Granted: 1959-09-29
•
Expires: 1975-04-29
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Schum
- 👤 Herman J Wimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:59
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/187; F01D5/188; F05; F05B; F05B2250/00; F05B2250/60; F05B2250/61; F05D; F05D2250/00; F05D2250/60; F05D2250/61
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR375059A
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US1083235A
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US1601402A
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DE860438C
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US2381459A
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US2394124A
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GB574440A
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US2364635A
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US2432315A
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DE869712C
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DE852786C
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US2641040A
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US2656146A
Cited
GB676314A
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US2642263A
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GB716612A
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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) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |