US2496284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus
Assignee: Woodward Inc
•
Filing: 1945-05-03
•
Granted: 1950-02-07
•
Expires: 1965-05-03
Abstract
No abstract record available.
Inventors
- 👤 Gillespie Sidney Lockwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:45
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; F; F15; F15B; F15B9/00; F15B9/02; F15B9/08; F15B9/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1199036A
Cited
US1406405A
Cited
US1965751A
Cited
GB402935A
Cited
US2325009A
Cited
US2373745A
Cited
US2377300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |