US3255121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of inhibiting corrosion of ferrous metals
Assignee: ConocoPhillips Co
•
Filing: 1963-08-02
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Granted: 1966-06-07
•
Expires: 1983-08-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Olen L Riggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:16
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/16; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A PROCESS OF INHIBITING CORROSION OF FERROUS METAL WHICH IS IN CONTACT WITH CORROSIVE FLUID CONTAINING A DISSOLVED CONSTITUENT SELECTED FROM THE GOROUP CONSISTING OF CO2, H2S AND MIXTURES THEREOF, WHICH PROCESS COMPRISES ADDING TO SAID FLUID A CORROSION INHIBITING AMOUNT OF A GUANIDINIUM COMPOUND:
Claim 2
Dependent Claim
45 words
A PROCESS OF INHIBITING CORROSION OF FERROUS METAL WHICH IS IN CONTACT WITH CORROSIVE FLUID CONTAINING A DISSOLVED CONSTITUENT SELECTED FROM THE GOROUP CONSISTING OF CO2, H2S AND MIXTURES THEREOF, WHICH PROCESS COMPRISES ADDING TO SAID FLUID A CORROSION INHIBITING AMOUNT OF A GUANIDINIUM COMPOUND:
References Cited (Backward Citations)
US1719650A
Cited
US3172854A
Cited
US2276587A
Cited
US2319668A
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US2891909A
Cited
US2906595A
Cited
US3008898A
Cited
US3159663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |