US3448587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concentration of high gas content liquids
Assignee: Phillips Petroleum Co
•
Filing: 1966-07-11
•
Granted: 1969-06-10
•
Expires: 1986-07-11
Abstract
No abstract record available.
Inventors
- 👤 Howard W Goard
- 👤 Duane D Shaul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:07
CPC Classifications
C; C12; C12H; C12H6/00; C12H6/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2896419A
Cited
US3182463A
Cited
US3240025A
Cited
US3295988A
Cited
US3285024A
Cited
US3339372A
Cited
US3327492A
Cited
US3269136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |