US3520133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine control system
Assignee: General Electric Co
•
Filing: 1968-03-14
•
Granted: 1970-07-14
•
Expires: 1988-03-14
Abstract
No abstract record available.
Inventors
- 👤 Arne Loft
- 👤 Daniel Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:04
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2971337A
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US2941359A
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US2971338A
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US2974483A
Cited
US3151450A
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US3295317A
Cited
US3097489A
Cited
US3365981A
Cited
US3340883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |