US2880745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closed circuit pipeline and control system therefor
Assignee: Consolidation Coal Co
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Filing: 1957-01-17
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Granted: 1959-04-07
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Expires: 1977-01-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Regan
- 👤 Sam A Jones
- 👤 Edward J Wasp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:13
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/30; F; F17; F17D; F17D1/00; F17D1/08; F17D1/088; Y; Y10; Y10S; Y10S417/00; Y10S417/90; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3118; Y10T137/8593; Y10T137/85978; Y10T137/86131; Y10T137/86163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |