US2460404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic conversion of hydrocarbons
Assignee: Universal Oil Products Co
•
Filing: 1943-09-30
•
Granted: 1949-02-01
•
Expires: 1963-09-30
Abstract
No abstract record available.
Inventors
- 👤 John W Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:34
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1867841A
Cited
US2328754A
Cited
US2296722A
Cited
US2338573A
Cited
US2235133A
Cited
US2300032A
Cited
US2322794A
Cited
US2298355A
Cited
US2326705A
Cited
US2377613A
Cited
US2379711A
Cited
US2304128A
Cited
US2327175A
Cited
US2356697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-01 | 1952-08-02 | 1953-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-01 | 1956-08-02 | 1957-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-01 | 1960-08-02 | 1961-02-01 | $7700.00 | Window Closed / Lapsed |