US3192644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized bed apparatus
Assignee: Fawkham Developments Ltd
•
Filing: 1962-03-02
•
Granted: 1965-07-06
•
Expires: 1982-03-02
Abstract
No abstract record available.
Inventors
- 👤 Knibbs Norman Victor Sydney
- 👤 Thyer Edward George Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:04
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/02; F26B3/06; F26B3/08; F26B3/082; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1019958A
Cited
US2608474A
Cited
US2763478A
Cited
GB729571A
Cited
US3052990A
Cited
US3040439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |