US2483485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High velocity fluid solids technique
Assignee: Standard Oil Development Co
•
Filing: 1947-12-31
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Granted: 1949-10-04
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Expires: 1967-12-31
Abstract
No abstract record available.
Inventors
- 👤 Frank T Barr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:37
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/32; C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0485; Y; Y10; Y10S; Y10S423/00; Y10S423/09; Y10S423/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2396709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |