US3067970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trim force control system
Assignee: Douglas Aircraft Co Inc
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Filing: 1960-05-26
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Granted: 1962-12-11
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Expires: 1980-05-26
Abstract
No abstract record available.
Inventors
- 👤 John M Divola
- 👤 Roger D Schaufele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:30
CPC Classifications
B; B64; B64C; B64C13/00; B64C13/24; B64C13/26; B64C13/28; B64C13/345
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |