Patent US2423949A successfully refreshed from Google Patents.
US2423949A
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Controlled catalytic photochemical oxidation of organic compounds
Assignee: Shell Development Co
•
Filing: 1943-01-30
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Granted: 1947-07-15
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Expires: 1963-01-30
Abstract
No abstract record available.
Inventors
- 👤 Frederick F Rust
- 👤 William E Vaughan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:26
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/28; B; B01; B01J; B01J19/00; B01J19/08; B01J19/12; B01J19/122; B01J19/123; C07C51/00; C07C51/16; C07C51/21; C07C51/215; Y; Y10; Y10S; Y10S204/00; Y10S204/902; Y10S204/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1678403A
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US1741305A
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US1988529A
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US2243053A
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US2003303A
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US1924763A
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US2104760A
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US2115206A
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US2149465A
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US2321823A
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US2369181A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-14 | 1951-01-13 | 1951-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-14 | 1955-01-13 | 1955-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-14 | 1959-01-13 | 1959-07-15 | $7700.00 | Window Closed / Lapsed |