US2828259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibiting composition
Assignee: Baker Petrolite LLC
•
Filing: 1953-04-08
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Granted: 1958-03-25
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Expires: 1973-04-08
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Wirtel
- 👤 Jr Charles M Blair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:17
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; Y; Y10; Y10S; Y10S507/00; Y10S507/902; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
NEW CORRISION INHIBITING COMPOSITIONS CONSISTING ESSENTIALLY OF, AS AN ACTIVE CORROSION INHIBITING CONSTITUENT, A NITROGEN-CONTAINING AGENT CHARACTERIZED BY HAVING ONLY ONE NITROGEN ATOM, WHICH NITROGEN ATOM IS BASIC, AND AT LEAST ONE HYDROCARBON GROUP HAVING 8 TO 32 CARBON ATOMS AND IN ADMIXTURE THEREWITH, AS AN AGENT WHICH ENCHANCE THE CORRISON INHIBITING ACTIVILY OF THE CORRISON INHIBITING CONSTITUENT, AT LEAST 5% AND NOT OVER 100%, BASED ON THE CORRISON INHIBITING ACTIVITY OF THE CORRISON ATED AROMATIC SULFONIC ACID COMPOUND SELECTED FROM THE CLASS CONSISTING OF ALKYLATED NAPHTALENE SURFONIC ACID COMPOUNDS OF THE FORMULA FGI-01 IN WHICH R IS ALKYL RADICAL HAVING 3 TO 12 CARBON ATOMS, N IS A NUMBER FROM 1 TO 3, WITH THE PROVISO THAT THE TOTAL NUMBER OF CARBON ATOMS PRESENT IN (R)N IS AT LEAST 6, AND ALKYLATED BENZENE SULFONIC ACID COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
140 words
NEW CORRISION INHIBITING COMPOSITIONS CONSISTING ESSENTIALLY OF, AS AN ACTIVE CORROSION INHIBITING CONSTITUENT, A NITROGEN-CONTAINING AGENT CHARACTERIZED BY HAVING ONLY ONE NITROGEN ATOM, WHICH NITROGEN ATOM IS BASIC, AND AT LEAST ONE HYDROCARBON GROUP HAVING 8 TO 32 CARBON ATOMS AND IN ADMIXTURE THEREWITH, AS AN AGENT WHICH ENCHANCE THE CORRISON INHIBITING ACTIVILY OF THE CORRISON INHIBITING CONSTITUENT, AT LEAST 5% AND NOT OVER 100%, BASED ON THE CORRISON INHIBITING ACTIVITY OF THE CORRISON ATED AROMATIC SULFONIC ACID COMPOUND SELECTED FROM THE CLASS CONSISTING OF ALKYLATED NAPHTALENE SURFONIC ACID COMPOUNDS OF THE FORMULA FGI-01 IN WHICH R IS ALKYL RADICAL HAVING 3 TO 12 CARBON ATOMS, N IS A NUMBER FROM 1 TO 3, WITH THE PROVISO THAT THE TOTAL NUMBER OF CARBON ATOMS PRESENT IN (R)N IS AT LEAST 6, AND ALKYLATED BENZENE SULFONIC ACID COMPOUNDS OF 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) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |