US1934968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of hydrocarbon oils
Assignee: Universal Oil Products Co
•
Filing: 1932-01-06
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Granted: 1933-11-14
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Expires: 1952-01-06
Abstract
No abstract record available.
Inventors
- 👤 Arthur G Connolly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:17
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/0207; B01J2208/00; B01J2208/00796; B01J2208/00823; B01J2208/00831; B01J2208/0084; B01J2219/00; B01J2219/18; B01J2219/182
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) | 1936-11-13 | 1937-05-15 | 1937-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-11-13 | 1941-05-15 | 1941-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-11-13 | 1945-05-15 | 1945-11-14 | $7700.00 | Window Closed / Lapsed |