Patent US2883240A successfully refreshed from Google Patents.
US2883240A
Expired / Lapsed
US
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Fluidized solids diffuser
Assignee: Individual
•
Filing: 1958-01-08
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Granted: 1959-04-21
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Expires: 1978-01-08
Abstract
No abstract record available.
Inventors
- 👤 Robert G Hahl
- 👤 Jr Harry N Lowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:17
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B65; B65G; B65G53/00; B65G2812/00; B65G2812/16; B65G2812/1608; B65G2812/1616; B65G2812/1625; B65G2812/1633
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) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |