Patent US2689707A successfully refreshed from Google Patents.
US2689707A
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US
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Speed limiting arrangement for turbine rotors
Assignee: General Electric Co
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Filing: 1949-02-17
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Granted: 1954-09-21
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Expires: 1969-02-17
Abstract
No abstract record available.
Inventors
- 👤 Douglas H Graham
- 👤 Tabberer George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:11
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/26; F02C7/268; F02C7/27; F02C7/272; F01; F01D; F01D21/00; F01D21/02; F02C7/275; F02C7/277; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |