US2425098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic conversion process
Assignee: Universal Oil Products Co
•
Filing: 1943-03-31
•
Granted: 1947-08-05
•
Expires: 1963-03-31
Abstract
No abstract record available.
Inventors
- 👤 Louis S Kassel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:29
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26; B01J8/28; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/901
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2298593A
Cited
US2288613A
Cited
US2325516A
Cited
US2311564A
Cited
US2302209A
Cited
US2327489A
Cited
US2360463A
Cited
US2341193A
Cited
US2307879A
Cited
US2367281A
Cited
US2356697A
Cited
US2345487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-04 | 1951-02-03 | 1951-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-04 | 1955-02-03 | 1955-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-04 | 1959-02-03 | 1959-08-05 | $7700.00 | Window Closed / Lapsed |