US3038856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibition
Assignee: Jefferson Chemical Co Inc
•
Filing: 1959-08-05
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Granted: 1962-06-12
•
Expires: 1979-08-05
Abstract
No abstract record available.
Inventors
- 👤 John G Milligan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:36
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/141; Y; Y10; Y10S; Y10S507/00; Y10S507/92; Y10S507/939
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
69 words
A METHOD FOR PROTECTING PREVENTING CORROSION OF FERROUS METAL SURFACE BY A CORROSIVE PETROLIFEROUS FLUID CONTAINING A CORROSIVE COMPONENT SELECTED FROM THE GROUP CONSISTING OF CARBON DIOXIDE AND SULFIDE BRINES WHICH COMPRISES THE STEPS OF ADDING A CORRISION INHIBITING AMOUNT OF A CORROSION INHIBITOR TO AT LEAST A PORTION OF SAID FLUID TO PROVIDE A MIXTURE AND CONTACTING SAID FERROUS SURFACE WITH SAID MIXTURE, SAID INHIBITOR HAVIN THE FORMULA
Claim 2
Independent Claim
69 words
A METHOD FOR PROTECTING PREVENTING CORROSION OF FERROUS METAL SURFACE BY A CORROSIVE PETROLIFEROUS FLUID CONTAINING A CORROSIVE COMPONENT SELECTED FROM THE GROUP CONSISTING OF CARBON DIOXIDE AND SULFIDE BRINES WHICH COMPRISES THE STEPS OF ADDING A CORRISION INHIBITING AMOUNT OF A CORROSION INHIBITOR TO AT LEAST A PORTION OF SAID FLUID TO PROVIDE A MIXTURE AND CONTACTING SAID FERROUS SURFACE WITH SAID MIXTURE, SAID INHIBITOR HAVIN THE FORMULA
Claim 3
Independent Claim
58 words
A METHOD FOR PREVENTING CORROSION OF A FERROUS METAL SURFACE BY A CORROSIVE PETROLIFEROUS FLUID CONTAINING A SULFATE-REDUCING BACTERIA WHICH COMPRISES THE STEPS OF ADDING A CORROSION INHIBITING AMOUNT OF A CORROSION INHIBITOR TO AT LEAST A PORTION OF SAID FLUID TO PROVIDE A MIXTURE AND CONTACTING SAID FERROUS SURFACE WITH SAID MIXTURE, SAID INHIBITOR HAVING THE FORMULA:
Claim 4
Independent Claim
58 words
A METHOD FOR PREVENTING CORROSION OF A FERROUS METAL SURFACE BY A CORROSIVE PETROLIFEROUS FLUID CONTAINING A SULFATE-REDUCING BACTERIA WHICH COMPRISES THE STEPS OF ADDING A CORROSION INHIBITING AMOUNT OF A CORROSION INHIBITOR TO AT LEAST A PORTION OF SAID FLUID TO PROVIDE A MIXTURE AND CONTACTING SAID FERROUS SURFACE WITH SAID MIXTURE, SAID INHIBITOR HAVING THE FORMULA:
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |