US2487795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon conversion process
Assignee: ExxonMobil Oil Corp
•
Filing: 1947-12-20
•
Granted: 1949-11-15
•
Expires: 1967-12-20
Abstract
No abstract record available.
Inventors
- 👤 Louis P Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:36
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/14; C10G11/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US226001A
Cited
US1278023A
Cited
US1568018A
Cited
US1447297A
Cited
US2382755A
Cited
US2354354A
Cited
US2354355A
Cited
US2437222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-14 | 1953-05-16 | 1953-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-14 | 1957-05-16 | 1957-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-14 | 1961-05-16 | 1961-11-15 | $7700.00 | Window Closed / Lapsed |