US2471913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of solid diluent in hydrocarbon synthesis process
Assignee: Standard Oil Development Co
•
Filing: 1947-02-27
•
Granted: 1949-05-31
•
Expires: 1967-02-27
Abstract
No abstract record available.
Inventors
- 👤 Simpson D Sumerford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:07
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/043; C07C1/0435; C07C1/044; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/32; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/745
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2035606A
Cited
US2287891A
Cited
US2398462A
Cited
US2360787A
Cited
US2393240A
Cited
US2393636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |