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US2897253A
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Mechanical protection of electric cables
Assignee: Balfour Beatty PLC
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Filing: 1955-10-06
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Granted: 1959-07-28
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Expires: 1975-10-06
Abstract
No abstract record available.
Inventors
- 👤 Davey Edward Leslie
- 👤 Murray William Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:26
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/14; H02; H02G; H02G15/00; H02G15/08; H02G15/10; H02G15/12; H02G15/14; H03; H03G; H03G3/00; H03G3/20; H03G3/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US996899A
Cited
US1699911A
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CH123582A
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AT115465B
Cited
US1902009A
Cited
US2022785A
Cited
US2697739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |