US3060005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for recovering products from sulfuric acid sludge
Assignee: Gulf Oil Corp
•
Filing: 1958-06-18
•
Granted: 1962-10-23
•
Expires: 1978-06-18
Abstract
No abstract record available.
Inventors
- 👤 William H Litchfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:53
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/48; C01B17/50; C01B17/58; C01B32/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
APPARATUS FOR RECOVERING ACID VALUES FROM SULFURIC ACID SLUDGE WHICH COMPRISES A SLUDGE DECOMPOSER PRO-
Claim 2
Dependent Claim
15 words
APPARATUS FOR RECOVERING ACID VALUES FROM SULFURIC ACID SLUDGE WHICH COMPRISES A SLUDGE DECOMPOSER PRO-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |