Patent US3551068A successfully refreshed from Google Patents.
US3551068A
Expired / Lapsed
US
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Rotor structure for an axial flow machine
Assignee: Westinghouse Electric Corp
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Filing: 1968-10-25
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Granted: 1970-12-29
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Expires: 1988-10-25
Abstract
No abstract record available.
Inventors
- 👤 Augustine J Scalzo
- 👤 James M Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:24
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/06; F01D5/066; F01D11/00; F01D11/001; F01D11/005; F01D11/006; F01D11/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-28 | 1974-06-29 | 1974-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-28 | 1978-06-29 | 1978-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-28 | 1982-06-29 | 1982-12-29 | $7700.00 | Window Closed / Lapsed |