Patent US3403198A successfully refreshed from Google Patents.
US3403198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of fluorides from hydrocarbon streams
Assignee: Phillips Petroleum Co
•
Filing: 1966-02-14
•
Granted: 1968-09-24
•
Expires: 1986-02-14
Abstract
No abstract record available.
Inventors
- 👤 Joe Van Pool
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:27
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C7/00; C07C7/148; C07C7/14833; C07C7/1485; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CA564683A
Cited
US2377546A
Cited
US2391149A
Cited
US2474032A
Cited
US2761888A
Cited
US2832811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |