US2832735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of inhibiting corrosion of metals
Assignee: Cities Service Research and Development Co
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Filing: 1955-11-17
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Granted: 1958-04-29
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Expires: 1975-11-17
Abstract
No abstract record available.
Inventors
- 👤 William B Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:01
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/16; C23F11/165; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
THE METHOD OF INHIBITING CORROSION OF FERROUS METALS WHEN EXPOSED TO CONTACT WITH CORROSIVE FLUIDS WHICH INCLUDE AND ACIDIC COMPONENT SLECTED FROM THE GROUP CONSISTING OF CARBON DIOXIDE AND HYDROGEN SULPHIRE WHICH COMPRISES INTRODUCING INTO SAID FLUID IN CONTACT WITH SAID FERROUS METAL A CORROSION INHIBITING AMOUNT OF A COMPOUND HAVING THE FORMULA
Claim 2
Independent Claim
53 words
THE METHOD OF INHIBITING CORROSION OF FERROUS METALS WHEN EXPOSED TO CONTACT WITH CORROSIVE FLUIDS WHICH INCLUDE AND ACIDIC COMPONENT SLECTED FROM THE GROUP CONSISTING OF CARBON DIOXIDE AND HYDROGEN SULPHIRE WHICH COMPRISES INTRODUCING INTO SAID FLUID IN CONTACT WITH SAID FERROUS METAL A CORROSION INHIBITING AMOUNT OF A COMPOUND HAVING THE FORMULA
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) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |