US3047495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibitors and methods of preparation and use thereof
Assignee: ChampionX LLC
•
Filing: 1956-08-17
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Granted: 1962-07-31
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Expires: 1976-08-17
Abstract
No abstract record available.
Inventors
- 👤 Willard H Kirkpatrick
- 👤 Virgil L Seale
- 👤 Jr Harold C Noe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:48
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/173; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A CORROSION INHIBITING COMPOSITION COMPRISING IN STICK FORM, A BASIC AMINE SALT COMPOSED OF THE REACTION PRODUCTS RESULTING FROM THE REACTION BETWEEN POLYETHYLENE GLYCOL CHLORIDE HAVING AN AVERAGE MOLECULAR WEIGHT IN THE RANGE OF ABOUT 200-800 AND AN AMINO HYDROGEN OF A PARTIAL AMIDE OF A POLYALKYLENE POLYAMINE HAVING TERMINAL PRIMARY AMINO GROUPS AND 2-3 CARBONS PER ALKYLENE GROUP AND HIGHER MOLECULAR WEIGHT FATTY ACIDS, SAID AMINE SALT HAVING A MELTING POINT WITHIN THE RANGE OF 145-240*F. AND A SUFFICIENT QUANTITY OF AN INORGANIC WEIGHTING MATERIAL TO PROVIDE A SPECIFIC GRAVITY FOR THE STICK SUBSTANTIALLY IN EXCESS OF 1.0.
Claim 2
Dependent Claim
99 words
A CORROSION INHIBITING COMPOSITION COMPRISING IN STICK FORM, A BASIC AMINE SALT COMPOSED OF THE REACTION PRODUCTS RESULTING FROM THE REACTION BETWEEN POLYETHYLENE GLYCOL CHLORIDE HAVING AN AVERAGE MOLECULAR WEIGHT IN THE RANGE OF ABOUT 200-800 AND AN AMINO HYDROGEN OF A PARTIAL AMIDE OF A POLYALKYLENE POLYAMINE HAVING TERMINAL PRIMARY AMINO GROUPS AND 2-3 CARBONS PER ALKYLENE GROUP AND HIGHER MOLECULAR WEIGHT FATTY ACIDS, SAID AMINE SALT HAVING A MELTING POINT WITHIN THE RANGE OF 145-240*F. AND A SUFFICIENT QUANTITY OF AN INORGANIC WEIGHTING MATERIAL TO PROVIDE A SPECIFIC GRAVITY FOR THE STICK SUBSTANTIALLY IN EXCESS OF 1.0.
References Cited (Backward Citations)
US2085706A
Cited
US2103872A
Cited
US2282702A
Cited
US2525771A
Cited
US2609931A
Cited
US2598213A
Cited
US2564758A
Cited
US2681354A
Cited
US2668165A
Cited
US2901430A
Cited
US2854324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |