US2693081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling gas turbine engines during transient operation
Assignee: ALLEN S ATKINSON
•
Filing: 1951-04-04
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Granted: 1954-11-02
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Expires: 1971-04-04
Abstract
No abstract record available.
Inventors
- 👤 Daniel G Russ
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:55
CPC Classifications
F; F04; F04D; F04D27/00; F04D27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2127172A
Cited
FR661605A
Cited
US1921710A
Cited
US2487774A
Cited
US2489586A
Cited
US2441948A
Cited
US2566373A
Cited
FR941556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |