US2979455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the control of bacteria
Assignee: Commercial Solvents Corp
•
Filing: 1958-10-03
•
Granted: 1961-04-11
•
Expires: 1978-10-03
Abstract
No abstract record available.
Inventors
- 👤 Edward O Bennett
- 👤 Edward B Hodge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:55
CPC Classifications
C; C10; C10G; C10G32/00; Y; Y10; Y10S; Y10S507/00; Y10S507/92; Y10S507/935; Y10S507/936
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
IN THE PROCESS OF SECONDARY OIL RECOVERY CHARACTERIZED BY THE STEP OF INJECTING FLOODING WATER INTO OIL BEARING SUBTERRANEAN FORMATIONS TO DISPLACE PORTIONS OF THE RESIDUAL OIL THEREIN, THE IMPROVEMENT WHICH COMPRISES HAVING PRESENT IN THE SAID INJECTED FLOODING WATER IN EXCESS OF 10-25 P.P.M. OF A NITROPOLYESTER HAVING THE FOLLOWING STRUCTURAL FORMULA:
Claim 2
Dependent Claim
53 words
IN THE PROCESS OF SECONDARY OIL RECOVERY CHARACTERIZED BY THE STEP OF INJECTING FLOODING WATER INTO OIL BEARING SUBTERRANEAN FORMATIONS TO DISPLACE PORTIONS OF THE RESIDUAL OIL THEREIN, THE IMPROVEMENT WHICH COMPRISES HAVING PRESENT IN THE SAID INJECTED FLOODING WATER IN EXCESS OF 10-25 P.P.M. OF A NITROPOLYESTER HAVING THE FOLLOWING STRUCTURAL FORMULA:
References Cited (Backward Citations)
US1198040A
Cited
US1873732A
Cited
US2419021A
Cited
US2402776A
Cited
US2692231A
Cited
US2651590A
Cited
US2839467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |