Patent US3405382A successfully refreshed from Google Patents.
US3401465A
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Means for cooling solid particulate materials with fluids
Assignee: NL Industries Inc
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Filing: 1966-12-23
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Granted: 1968-09-17
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Expires: 1986-12-23
Abstract
No abstract record available.
Inventors
- 👤 Larwill Johart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:48
CPC Classifications
F; F28; F28C; F28C3/00; F28C3/10; F28C3/12; F28C3/16; B; B01; B01J; B01J8/00; B01J8/08; B01J8/10; B01J8/18; B01J8/1836; B01J8/24; B01J8/38; B01J8/382; B01J8/44; C; C01; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/07; C01G23/075
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) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |