US2388428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalysis of organic reactions
Assignee: Universal Oil Products Co
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Filing: 1943-03-31
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Granted: 1945-11-06
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Expires: 1963-03-31
Abstract
No abstract record available.
Inventors
- 👤 Julian M Mavity
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:26
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/271; C07C5/2718; C07C5/2721; B; B01; B01J; B01J27/00; B01J27/06; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/60; C07C5/2767; C07C5/277; C07C5/2778; C07C5/2786; C07C5/2789; C07C2527/00; C07C2527/06; C07C2527/125; C07C2527/126
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) | 1948-11-05 | 1949-05-07 | 1949-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-11-05 | 1953-05-07 | 1953-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-11-05 | 1957-05-07 | 1957-11-06 | $7700.00 | Window Closed / Lapsed |