Patent US2512740A successfully refreshed from Google Patents.
US2512740A
Expired / Lapsed
US
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Electrical cattle guard
Assignee: Individual
•
Filing: 1945-11-06
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Granted: 1950-06-27
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Expires: 1965-11-06
Abstract
No abstract record available.
Inventors
- 👤 Carroll L Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:59
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/14; H01B17/145; A; A01; A01K; A01K15/00; A01K15/04; A01K3/00; A01K3/002; A01K3/004; A01K3/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US437742A
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US520510A
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US730794A
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US830921A
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US867759A
Cited
US1580185A
Cited
US1740107A
Cited
US1704085A
Cited
US2023835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |