US2366743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of hydrocarbon materials
Assignee: Phillips Petroleum Co
•
Filing: 1941-05-26
•
Granted: 1945-01-09
•
Expires: 1961-05-26
Abstract
No abstract record available.
Inventors
- 👤 Maryan P Matuszak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:15
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/02; C10G17/04; C10G17/07; C10G53/00; C10G53/02; C10G53/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1948-01-09 | 1948-07-10 | 1949-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-01-09 | 1952-07-10 | 1953-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-01-09 | 1956-07-10 | 1957-01-09 | $7700.00 | Window Closed / Lapsed |