US2364762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of aromatic hydrocarbons
Assignee: Universal Oil Products Co
•
Filing: 1941-05-19
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Granted: 1944-12-12
•
Expires: 1961-05-19
Abstract
No abstract record available.
Inventors
- 👤 Schmerling Louis
- 👤 Arthur M Durinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:42
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/86; C07C2/861; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/06
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) | 1947-12-12 | 1948-06-12 | 1948-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-12 | 1952-06-12 | 1952-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-12 | 1956-06-12 | 1956-12-12 | $7700.00 | Window Closed / Lapsed |