US2686359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of attaching hauling lines to the ends of tubes
Assignee: Balfour Beatty PLC
•
Filing: 1951-01-23
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Granted: 1954-08-17
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Expires: 1971-01-23
Abstract
No abstract record available.
Inventors
- 👤 Spencer James Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:54
CPC Classifications
B; B21; B21C; B21C5/00; B21C5/003; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US378976A
Cited
US880563A
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US1761521A
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US2002220A
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US2182663A
Cited
US2405201A
Cited
US2480280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |