US3422831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine control system
Assignee: General Electric Co
•
Filing: 1967-02-20
•
Granted: 1969-01-21
•
Expires: 1987-02-20
Abstract
No abstract record available.
Inventors
- 👤 Kenneth Orral Straney
- 👤 Ove Mareno Sivertsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:55
CPC Classifications
F; F01; F01K; F01K15/00; F01K15/02; F01K15/04; F01K15/045; F01D; F01D15/00; F01D15/02; F01D15/04; F01D15/045; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/1026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3348559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |