US2980755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric cables
Assignee: Balfour Beatty PLC
•
Filing: 1959-01-13
•
Granted: 1961-04-18
•
Expires: 1979-01-13
Abstract
No abstract record available.
Inventors
- 👤 Fairfield Ronald Mcleod
- 👤 Davey Edward Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:33
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/02; H02G15/06; H01; H01B; H01B9/00; H01B9/06; H01B9/0644; H02G15/20; H02G15/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA450295A
Cited
CA480891A
Cited
US1730740A
Cited
GB553716A
Cited
US2531156A
Cited
US2650261A
Cited
GB675244A
Cited
US2754352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |