Patent US2818905A successfully refreshed from Google Patents.
US2818905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric cables
Assignee: Balfour Beatty PLC
•
Filing: 1956-01-04
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Granted: 1958-01-07
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Expires: 1976-01-04
Abstract
No abstract record available.
Inventors
- 👤 Simmonds George Herbert
- 👤 Stewart Hector David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:54
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
8 words
THE METHOD OF MANUFACTURING A BUOYAM CABLE WHICH
References Cited (Backward Citations)
US2518323A
Cited
US2404239A
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US2428480A
Cited
US2403693A
Cited
US2466271A
Cited
US2518454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |