Patent US2418672A successfully refreshed from Google Patents.
US2418672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for hydrocarbon conversion
Assignee: ExxonMobil Oil Corp
•
Filing: 1943-05-27
•
Granted: 1947-04-08
•
Expires: 1963-05-27
Abstract
No abstract record available.
Inventors
- 👤 Edward L Sinclair
- 👤 William A Hagerbaumer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:48
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1977684A
Cited
US1812446A
Cited
US1852227A
Cited
US2094946A
Cited
US2090159A
Cited
US2234505A
Cited
US2204003A
Cited
US2239801A
Cited
US2290580A
Cited
US2351214A
Cited
US2298593A
Cited
US2348156A
Cited
US2246345A
Cited
US2270715A
Cited
US2301044A
Cited
US2304183A
Cited
US2338573A
Cited
US2362196A
Cited
US2304128A
Cited
US2376365A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-07 | 1950-10-07 | 1951-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-07 | 1954-10-07 | 1955-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-07 | 1958-10-07 | 1959-04-08 | $7700.00 | Window Closed / Lapsed |