Patent US2187034A successfully refreshed from Google Patents.
US2187034A
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Treatment of hydrocarbons
Assignee: Universal Oil Products Co
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Filing: 1936-12-17
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Granted: 1940-01-16
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Expires: 1956-12-17
Abstract
No abstract record available.
Inventors
- 👤 Ipatieff Vladimir
- 👤 Pines Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:49
CPC Classifications
C; C07; C07C; C07C4/00; C07C4/22; C07C15/00; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/68; C07C2/70; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/10; C07C2527/11; 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) | 1943-01-15 | 1943-07-17 | 1944-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-15 | 1947-07-17 | 1948-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-15 | 1951-07-17 | 1952-01-16 | $7700.00 | Window Closed / Lapsed |