US2434567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for contacting hydrocarbons with catalyst particles
Assignee: Standard Oil Development Co
•
Filing: 1944-01-19
•
Granted: 1948-01-13
•
Expires: 1964-01-19
Abstract
No abstract record available.
Inventors
- 👤 Charles E Jahnig
- 👤 Charles W Tyson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:02
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2325136A
Cited
US2340878A
Cited
US2311564A
Cited
US2326705A
Cited
US2273076A
Cited
US2325611A
Cited
US2327175A
Cited
US2353731A
Cited
US2391334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-12 | 1951-07-14 | 1952-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-12 | 1955-07-14 | 1956-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-12 | 1959-07-14 | 1960-01-13 | $7700.00 | Window Closed / Lapsed |