US3439183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state fence controller
Assignee: INTERN ELECTRIC FENCE CO Inc
•
Filing: 1966-03-16
•
Granted: 1969-04-15
•
Expires: 1986-03-16
Abstract
No abstract record available.
Inventors
- 👤 Leonard L Hurst Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:51
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/35; H03K3/352; H05; H05C; H05C1/00; H05C1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1267417A
Cited
GB945249A
Cited
US3201597A
Cited
US3259893A
Cited
US3348131A
Cited
US3302128A
Cited
US3325717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |