US2661389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric cable
Assignee: Telegraph Construction and Maintenance Co Ltd
•
Filing: 1949-03-14
•
Granted: 1953-12-01
•
Expires: 1969-03-14
Abstract
No abstract record available.
Inventors
- 👤 Presswell Richard William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:28
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/08; H02G15/10; H02G15/12; H02G15/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1135376A
Cited
US1944138A
Cited
US2010145A
Cited
US2158492A
Cited
US2155650A
Cited
US2292358A
Cited
US2469416A
Cited
US2471468A
Cited
US2471046A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |