Patent US3004925A successfully refreshed from Google Patents.
US3004925A
Expired / Lapsed
US
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Corrosion inhibition
Assignee: Airco Inc
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Filing: 1959-03-18
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Granted: 1961-10-17
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Expires: 1979-03-18
Abstract
No abstract record available.
Inventors
- 👤 Robert J Burch
- 👤 Davidowich George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:16
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/04; C23F11/08; C23F11/10; C23F11/12; C23F11/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF WATER, AN AGENT WHICH IS NORMALLY CORROSIVE TO METALS SAID AGENT BEING SELECTED FROM THE GROUP CONSISTING OF ACIDS, BASES, AND SALTS, AND A CORROSION INHIBITING AMOUNT OF AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF ETHYLENE OXIDE ADDUCTS OF ACETYLENIC GLYCOLS HAVING THE FORMULA
Claim 2
Dependent Claim
52 words
AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF WATER, AN AGENT WHICH IS NORMALLY CORROSIVE TO METALS SAID AGENT BEING SELECTED FROM THE GROUP CONSISTING OF ACIDS, BASES, AND SALTS, AND A CORROSION INHIBITING AMOUNT OF AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF ETHYLENE OXIDE ADDUCTS OF ACETYLENIC GLYCOLS 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) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |