US3034865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur production
Assignee: Universal Oil Products Co
•
Filing: 1960-11-25
•
Granted: 1962-05-15
•
Expires: 1980-11-25
Abstract
No abstract record available.
Inventors
- 👤 Urban Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:24
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/04; C01B17/05; B; B01; B01J; B01J31/00; B01J31/16; B01J31/1616; B01J31/18; B01J31/1805; B01J31/181; B01J31/1825; B01J31/183; B01J2531/00; B01J2531/02; B01J2531/0238; B01J2531/0241; B01J2531/025; B01J2531/50; B01J2531/56; B01J2531/80; B01J2531/84; B01J2531/845
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A PROCESS FOR CONVERTING HYDROGEEN SULFIDE TO FREE SULFUR WHICH COMPRISES REACTING HYDROGEN SULFIDE WITH OXYGEN IN A BASIC NITROGEN-COMPOUND SOLUTION IN THE PRESENCE OF A METAL PHTHALOCYANINE CATALYST.
Claim 2
Dependent Claim
29 words
A PROCESS FOR CONVERTING HYDROGEEN SULFIDE TO FREE SULFUR WHICH COMPRISES REACTING HYDROGEN SULFIDE WITH OXYGEN IN A BASIC NITROGEN-COMPOUND SOLUTION IN THE PRESENCE OF A METAL PHTHALOCYANINE CATALYST.
References Cited (Backward Citations)
US2853432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |