US3366080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized bed combustion system
Assignee: Dorr Oliver Inc
•
Filing: 1966-12-08
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Granted: 1968-01-30
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Expires: 1986-12-08
Abstract
No abstract record available.
Inventors
- 👤 Orris E Albertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:31
CPC Classifications
F; F28; F28C; F28C3/00; F28C3/10; F28C3/12; F28C3/16; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/38; B01J8/384; B01J8/388; F23; F23G; F23G5/00; F23G5/30; F23G5/50; F23G2203/00; F23G2203/50; F23G2203/501
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3319586A
Cited
US3322079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |