US2374518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic process
Assignee: Phillips Petroleum Co
•
Filing: 1943-04-09
•
Granted: 1945-04-24
•
Expires: 1963-04-09
Abstract
No abstract record available.
Inventors
- 👤 Wolk I Louis
- 👤 Thomas H Whaley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:02
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; B; B01; B01J; B01J8/00; B01J8/08; B01J8/085; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C4/00; C07C4/02; C07C4/06; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2778; C07C5/2786; C07C5/2789; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/10; C07C2527/11; C07C2527/12; C07C2527/1206; C07C2527/125; C07C2527/126; Y; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/95
Claims Analysis
Total Claims: 0
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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) | 1948-04-23 | 1948-10-23 | 1949-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-23 | 1952-10-23 | 1953-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-23 | 1956-10-23 | 1957-04-24 | $7700.00 | Window Closed / Lapsed |