US3111983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of hydrogen sulfide from water
Assignee: Jersey Production Research Co
•
Filing: 1962-01-25
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Granted: 1963-11-26
•
Expires: 1982-01-25
Abstract
No abstract record available.
Inventors
- 👤 Wallace J Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:55
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/04; C01B17/0473; C02; C02F; C02F1/00; C02F1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
IN A METHOD OF SWEETENING A HYDROGEN SULFIDE-CONTAMINATED WATER STREAM, THE IMPROVEMENT COMPRISING: IN AN OXYGEN-FREE ENVIRONMENT, CONTACTING THE STREAM AT A PREDETERMINED LOCATION THEREIN WITH SULFUR TRIOXIDE TO LOWER THE PH OF THE WATER, AND WITH A
Claim 2
Dependent Claim
38 words
IN A METHOD OF SWEETENING A HYDROGEN SULFIDE-CONTAMINATED WATER STREAM, THE IMPROVEMENT COMPRISING: IN AN OXYGEN-FREE ENVIRONMENT, CONTACTING THE STREAM AT A PREDETERMINED LOCATION THEREIN WITH SULFUR TRIOXIDE TO LOWER THE PH OF THE WATER, AND WITH A
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |