US2340922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulphurization of hydrocarbon oils
Assignee: Atlantic Richfield Co
•
Filing: 1941-04-15
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Granted: 1944-02-08
•
Expires: 1961-04-15
Abstract
No abstract record available.
Inventors
- 👤 Robert D Bent
- 👤 Charles A Pines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:58
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/095; C10G25/00; C10G29/00; C10G45/00; C10G45/02; C10G45/24; C10G45/28; C10G65/00; C10G65/02; C10G65/04
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) | 1947-02-07 | 1947-08-09 | 1948-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-02-07 | 1951-08-09 | 1952-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-02-07 | 1955-08-09 | 1956-02-08 | $7700.00 | Window Closed / Lapsed |