US2960161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for discharging materials from vessels
Assignee: Individual
•
Filing: 1958-05-15
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Granted: 1960-11-15
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Expires: 1978-05-15
Abstract
No abstract record available.
Inventors
- 👤 John C F C Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:46
CPC Classifications
D; D21; D21C; D21C7/00; D21C7/08; B; B01; B01J; B01J8/00; B01J8/0015; B01J8/002; B65; B65G; B65G53/00; B65G53/34; B65G53/40; B65G53/46; B65G53/4608; B65G53/4616; B65G53/48; B65G69/00; B65G2814/00; B65G2814/02; B65G2814/0241; B65G2814/0264
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) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |