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US2440900A
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US
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Ground detector for electric wire fences
Assignee: Individual
•
Filing: 1944-11-06
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Granted: 1948-05-04
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Expires: 1964-11-06
Abstract
No abstract record available.
Inventors
- 👤 Heimke Wilbur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:07
CPC Classifications
H; H05; H05C; H05C3/00; G; G08; G08B; G08B13/00; G08B13/02; G08B13/12; G08B13/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US346609A
Cited
US1314583A
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US2091813A
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US2196046A
Cited
US2316211A
Cited
US2315757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-04 | 1951-11-03 | 1952-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-04 | 1955-11-03 | 1956-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-04 | 1959-11-03 | 1960-05-04 | $7700.00 | Window Closed / Lapsed |