US2796485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic electrically-charged swinging gate switch
Assignee: FARM DEVICES Inc
•
Filing: 1955-02-01
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Granted: 1957-06-18
•
Expires: 1975-02-01
Abstract
No abstract record available.
Inventors
- 👤 James D Durkee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:24
CPC Classifications
H; H01; H01H; H01H21/00; H01H21/02; H01H21/18; H01H21/22; H01H21/24; H01H21/28; H01B; H01B17/00; H01B17/14; H01B17/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2540562A
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US2602421A
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US2629192A
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US2601410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |