Patent US3112776A successfully refreshed from Google Patents.
US3112776A
Expired / Lapsed
US
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Discharge and filling apparatus for fluidized solid particles
Assignee: United Coke and Chemical Co
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Filing: 1961-05-05
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Granted: 1963-12-03
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Expires: 1981-05-05
Abstract
No abstract record available.
Inventors
- 👤 Riley Harry Lister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:19
CPC Classifications
B; B65; B65B; B65B1/00; B65B1/28; B01; B01J; B01J8/00; B01J8/0015; B01J8/003
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) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |