US3454706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric pole line structure with riser cable in a ventilated duct
Assignee: Individual
•
Filing: 1968-10-21
•
Granted: 1969-07-08
•
Expires: 1988-10-21
Abstract
No abstract record available.
Inventors
- 👤 J Hebden Willox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:11
CPC Classifications
H; H02; H02G; H02G7/00; H02G7/20; H02G7/205
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2230734A
Cited
US2541406A
Cited
US2859270A
Cited
US2945081A
Cited
US3075037A
Cited
US3162720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |