US2373803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst recovery process
Assignee: ExxonMobil Oil Corp
•
Filing: 1944-03-13
•
Granted: 1945-04-17
•
Expires: 1964-03-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Baker
- 👤 Friedman Julian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:26
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/48; C01F7/64; B; B01; B01J; B01J27/00; B01J27/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-04-16 | 1948-10-16 | 1949-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-16 | 1952-10-16 | 1953-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-16 | 1956-10-16 | 1957-04-17 | $7700.00 | Window Closed / Lapsed |