US3198733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the control of sulfatereducing bacteria
Assignee: Buckman Laboratories Inc
•
Filing: 1961-12-26
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Granted: 1965-08-03
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Pera John Dominic
- 👤 Sharpley John Miles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:03
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/605; Y; Y10; Y10S; Y10S507/00; Y10S507/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
IN THE PRODUCTION OF PETROLEUM IN A SECONDARY RECOVERY PETROLEUM OPERATION, THE METHOD OF INHIBITING DETERIORATION OF THE CRUDE OIL-WATER MIXTURE BY THE GROWTH OF SULFATE-REDUCING BACTERIA IN THE WATER BY ADDING TO THE AQUEOUS FLUID TO 0.5 TO 20 PARTS PER MILLION PARTS OF WATER OF A WATER-SOLUBLE N,N-DIMETHYLDITHIOCARBAMATE.
Claim 2
Dependent Claim
50 words
IN THE PRODUCTION OF PETROLEUM IN A SECONDARY RECOVERY PETROLEUM OPERATION, THE METHOD OF INHIBITING DETERIORATION OF THE CRUDE OIL-WATER MIXTURE BY THE GROWTH OF SULFATE-REDUCING BACTERIA IN THE WATER BY ADDING TO THE AQUEOUS FLUID TO 0.5 TO 20 PARTS PER MILLION PARTS OF WATER OF A WATER-SOLUBLE N,N-DIMETHYLDITHIOCARBAMATE.
References Cited (Backward Citations)
US1972961A
Cited
US2692231A
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US2881070A
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FR1192252A
Cited
GB861867A
Cited
US2867279A
Cited
US2881071A
Cited
US2929758A
Cited
US3024159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |