US2931168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable stator engine control system
Assignee: General Electric Co
•
Filing: 1955-05-24
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Granted: 1960-04-05
•
Expires: 1975-05-24
Abstract
No abstract record available.
Inventors
- 👤 Walter C Alexander
- 👤 Robert P Wanger
- 👤 Nordwald Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:51
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/48; F02C9/50; F02C9/54; F02C9/16; F02C9/20; F02K; F02K1/00; F02K1/06; F02K1/15; F02K1/16; F02K1/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2670599A
Cited
GB687498A
Cited
US2705590A
Cited
US2763986A
Cited
US2759549A
Cited
US2822666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |