Patent US2833431A successfully refreshed from Google Patents.
US2833431A
Expired / Lapsed
US
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Electric and hydraulic power and control system
Assignee: Individual
•
Filing: 1954-02-16
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Granted: 1958-05-06
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Expires: 1974-02-16
Abstract
No abstract record available.
Inventors
- 👤 Robert K Bole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:28
CPC Classifications
F; F41; F41F; F41F3/00; F41F3/04; F41A; F41A9/00; F41A9/01; F41A9/06; F41A9/09; F41A9/20; F41A9/21; F41A9/38; F41A9/45; F41A9/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1683937A
Cited
US2402742A
Cited
US2407692A
Cited
US2402777A
Cited
US2591673A
Cited
US2456620A
Cited
US2390302A
Cited
US2671861A
Cited
US2566391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |