US3211667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibition
Assignee: ConocoPhillips Co
•
Filing: 1964-08-17
•
Granted: 1965-10-12
•
Expires: 1984-08-17
Abstract
No abstract record available.
Inventors
- 👤 Donald M Coyne
- 👤 Jr Olen L Riggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:36
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
THE METHOD OF INHIBITING THE CORROSION OF FERROUS METALS IN CONTACT WITH A CORROSIVE AQUEOUS MEDIUM WHICH COMPRISES INCORPORATING INTO SAID MEDIUM A PRODUCT FORMED BY THE REACTON OF ABOUT ONE MOLE EQUIVALENT OF AN UNSATURATED DIOL OF THE FORMULA
Claim 2
Independent Claim
40 words
THE METHOD OF INHIBITING THE CORROSION OF FERROUS METALS IN CONTACT WITH A CORROSIVE AQUEOUS MEDIUM WHICH COMPRISES INCORPORATING INTO SAID MEDIUM A PRODUCT FORMED BY THE REACTON OF ABOUT ONE MOLE EQUIVALENT OF AN UNSATURATED DIOL OF THE FORMULA
References Cited (Backward Citations)
US2598213A
Cited
GB762228A
Cited
US3107221A
Cited
US3113113A
Cited
US3152187A
Cited
US3107222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |