US3040439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solids fluidizing vessel and gas diffuser plate and nozzle elements therefor
Assignee: General American Transportation Corp
•
Filing: 1959-07-21
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Granted: 1962-06-26
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Expires: 1979-07-21
Abstract
No abstract record available.
Inventors
- 👤 William G Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:29
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/02; F26B3/06; F26B3/08; F26B3/082; B; B01; B01J; B01J8/00; B01J8/18; B01J8/1818; B01J8/24; B01J8/44; Y; Y10; Y10S; Y10S118/00; Y10S118/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2378952A
Cited
US2338446A
Cited
GB729571A
Cited
US2841476A
Cited
GB796753A
Cited
US2924441A
Cited
US2951747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |