US3488092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing acid-gas well containing sulfur
Assignee: Phillips Petroleum Co
•
Filing: 1967-12-18
•
Granted: 1970-01-06
•
Expires: 1987-12-18
Abstract
No abstract record available.
Inventors
- 👤 Maurice R Dean
- 👤 Henry B Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:56
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/027; C01B17/033; C01B17/64; C09; C09K; C09K8/00; C09K8/52; C09K8/528; C09K8/532
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2688368A
Cited
US3331657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |