US2357495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of hydrocarbons
Assignee: Universal Oil Products Co
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Filing: 1940-10-19
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Granted: 1944-09-05
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Expires: 1960-10-19
Abstract
No abstract record available.
Inventors
- 👤 Herman S Bloch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:09
CPC Classifications
C; C10; C10C; C10C1/00; C10C1/20; C10C1/205
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) | 1947-09-05 | 1948-03-06 | 1948-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-09-05 | 1952-03-06 | 1952-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-09-05 | 1956-03-06 | 1956-09-05 | $7700.00 | Window Closed / Lapsed |