Patent US3515499A successfully refreshed from Google Patents.
US3515499A
Expired / Lapsed
US
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Blades and blade assemblies for turbine engines,compressors and the like
Assignee: Aerojet Rocketdyne Inc
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Filing: 1968-04-22
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Granted: 1970-06-02
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Expires: 1988-04-22
Abstract
No abstract record available.
Inventors
- 👤 Rudolf E Beer
- 👤 Clarence E Klessig
- 👤 Richard J La Botz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:17
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2701120A
Cited
US2786646A
Cited
US2853271A
Cited
US2825530A
Cited
US2828106A
Cited
DE1064757B
Cited
US3301526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |