US3067490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of turbine rotors welded from single parts
Assignee: BBC Brown Boveri AG Germany
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Filing: 1958-02-24
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Granted: 1962-12-11
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Expires: 1978-02-24
Abstract
No abstract record available.
Inventors
- 👤 Luthy Adolf
- 👤 Hummel Piero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:12
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/0026; F; F01; F01D; F01D5/00; F01D5/02; F01D5/06; F01D5/063; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2179556A
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US2288433A
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US2317092A
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US2384919A
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US2450493A
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US2440933A
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US2438867A
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US2555924A
Cited
GB706464A
Cited
US2819517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |