Patent US4089133A successfully refreshed from Google Patents.
Patent US3095276A successfully refreshed from Google Patents.
US3095276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of sulfur
Assignee: Universal Oil Products Co
•
Filing: 1961-07-21
•
Granted: 1963-06-25
•
Expires: 1981-07-21
Abstract
No abstract record available.
Inventors
- 👤 Urban Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:16
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/04; C01B17/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PROCESS FOR THE PRODUCTION OF SULFUR WHICH COMPRISES REACTING OXYGEN WITH HYDROGEN SULFIDE DISSOLVED IN AN AQUEOUS SOLUTION OF A SOLUBLE SALT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND ALKALINE EARTH METAL ACID ANTIMONATES, ARSENATES, BORATES, PHOSPHATES AND SILICATES IN THE PRESENCE OF CATALYST SELECTED FROM THE GROUP CONSISTING OF THE MONOSULFONATES, POLYSULFONATES, MONOCARBOXYLATES AND POLYCARBOXYLATES OF COBALT PHTHALOCYANINE AND VANADIUM PHTHALOCYANINE, AND RECOVERING THE DESIRED SULFUR.
Claim 2
Dependent Claim
70 words
A PROCESS FOR THE PRODUCTION OF SULFUR WHICH COMPRISES REACTING OXYGEN WITH HYDROGEN SULFIDE DISSOLVED IN AN AQUEOUS SOLUTION OF A SOLUBLE SALT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND ALKALINE EARTH METAL ACID ANTIMONATES, ARSENATES, BORATES, PHOSPHATES AND SILICATES IN THE PRESENCE OF CATALYST SELECTED FROM THE GROUP CONSISTING OF THE MONOSULFONATES, POLYSULFONATES, MONOCARBOXYLATES AND POLYCARBOXYLATES OF COBALT PHTHALOCYANINE AND VANADIUM PHTHALOCYANINE, AND RECOVERING THE DESIRED SULFUR.
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |