US2348009A
Expired / Lapsed
US
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Catalytic conversion process
Assignee: Standard Oil Co
•
Filing: 1941-09-12
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Granted: 1944-05-02
•
Expires: 1961-09-12
Abstract
No abstract record available.
Inventors
- 👤 Everett A Johnson
- 👤 Voorhees Vanderveer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:09
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26; B01J8/005; B01J8/1836; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00088; B01J2208/00106; B01J2208/00168; B01J2208/00256; B01J2208/00265; B01J2208/00292
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) | 1947-05-02 | 1947-11-01 | 1948-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-05-02 | 1951-11-01 | 1952-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-05-02 | 1955-11-01 | 1956-05-02 | $7700.00 | Window Closed / Lapsed |