US2443337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for catalytic conversion of hydrocarbons
Assignee: Phillips Petroleum Co
•
Filing: 1944-08-24
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Granted: 1948-06-15
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Expires: 1964-08-24
Abstract
No abstract record available.
Inventors
- 👤 Weber Louis Joe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:15
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; B01J8/125; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/91; Y10S585/919; Y10S585/921; Y10S585/924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2374151A
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US2387378A
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US2389636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-15 | 1951-12-15 | 1952-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-15 | 1955-12-15 | 1956-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-15 | 1959-12-15 | 1960-06-15 | $7700.00 | Window Closed / Lapsed |