US2430784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of hydrocarbons
Assignee: MW Kellogg Co
•
Filing: 1944-12-13
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Granted: 1947-11-11
•
Expires: 1964-12-13
Abstract
No abstract record available.
Inventors
- 👤 Robert F Ruthruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:02
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/04; B01J8/0446; B01J8/0449; B01J8/0453; B01J8/0457; B01J8/0492; B01J8/08; B01J8/10; C; C10; C10G; C10G11/00; C10G11/14; C10G11/16; B01J2208/00; B01J2208/00796; B01J2208/00823; B01J2208/00858; B01J2208/00867
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1967636A
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US2027552A
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US2239801A
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US2289329A
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US2253486A
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US2357136A
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US2341193A
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US2354546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-10 | 1951-05-12 | 1951-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-10 | 1955-05-12 | 1955-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-10 | 1959-05-12 | 1959-11-11 | $7700.00 | Window Closed / Lapsed |