US2042220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic oxidation of unsaturated alcohols
Assignee: Shell Development Co
•
Filing: 1934-04-18
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Granted: 1936-05-26
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Expires: 1954-04-18
Abstract
No abstract record available.
Inventors
- 👤 Herbert P A Groll
- 👤 Jong Henry W De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:35
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/76; C07C49/794; C07C45/00; C07C45/27; C07C45/32; C07C45/37; C07C45/38; C07C45/39; C07C47/00; C07C47/20; C07C47/21; C07C49/20; C07C49/203
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) | 1939-05-26 | 1939-11-25 | 1940-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-05-26 | 1943-11-25 | 1944-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-05-26 | 1947-11-25 | 1948-05-26 | $7700.00 | Window Closed / Lapsed |