Patent US2839467A successfully refreshed from Google Patents.
US2839467A
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Bactericidal compositions and method of bacteria control comprising certain mixtures including certain hydrocarbyl imidazoline mixtures
Assignee: Baker Petrolite LLC
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Filing: 1955-08-03
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Granted: 1958-06-17
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Expires: 1975-08-03
Abstract
No abstract record available.
Inventors
- 👤 Hutchison Charles Bryce
- 👤 William J Ries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:17
CPC Classifications
A; A01; A01N; A01N43/00; A01N43/48; A01N43/50; Y; Y10; Y10S; Y10S507/00; Y10S507/92; Y10S507/935; Y10S507/936
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
IN A FLOODING PROCESS FOR THE RECOVERY OF OIL FROM OIL-BEARING STRATA TAKING PLACE IN THE PRESENCE OF ANAEROBIC SULFATE-REDUCING BACTERIA AND SOLUBLE FERROUS SALTS, THE IMPROVEMENT WHICH COMPRISES FLOODING THE OIL-BEARING STRATA WITH AN AQUEOUS LIQUID CONTAINING A BACTYERICIDE CONSISTING ESSENTIALLY OF A MIXTURE OF NOT LESS THAN 40% AND NOT OVER 60% BY WEIGHT OF AN AMINO IMIDAZOLINE OF THE STRUCTURE
Claim 2
Dependent Claim
63 words
IN A FLOODING PROCESS FOR THE RECOVERY OF OIL FROM OIL-BEARING STRATA TAKING PLACE IN THE PRESENCE OF ANAEROBIC SULFATE-REDUCING BACTERIA AND SOLUBLE FERROUS SALTS, THE IMPROVEMENT WHICH COMPRISES FLOODING THE OIL-BEARING STRATA WITH AN AQUEOUS LIQUID CONTAINING A BACTYERICIDE CONSISTING ESSENTIALLY OF A MIXTURE OF NOT LESS THAN 40% AND NOT OVER 60% BY WEIGHT OF AN AMINO IMIDAZOLINE OF THE STRUCTURE
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) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |