US3011738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autopilot
Assignee: Individual
•
Filing: 1952-01-17
•
Granted: 1961-12-05
•
Expires: 1972-01-17
Abstract
No abstract record available.
Inventors
- 👤 Harold K Skramstad
- 👤 John A Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
F; F42; F42B; F42B17/00; F42B15/00; F42B15/22; F42B19/00; F42B19/46; G; G05; G05D; G05D1/00; G05D1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2417821A
Cited
US2603433A
Cited
US2507304A
Cited
US2603434A
Cited
US2579528A
Cited
US2593014A
Cited
US2558096A
Cited
US2531458A
Cited
US2655328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |