Patent US3337470A successfully refreshed from Google Patents.
US3337470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibition with propargyl cyclohexylamine
Assignee: Airco Inc
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Filing: 1964-04-15
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Granted: 1967-08-22
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Expires: 1984-04-15
Abstract
No abstract record available.
Inventors
- 👤 Davidowich George
- 👤 Morton W Leeds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:14
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/02; C23G1/04; C23G1/06; C23G1/068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A METHOD OF INHIBITING THE CORROSION OF METALS BY AN AQUEOUS SOLUTION OF A MINERAL ACID WHICH COMPRISES INCORPORATING IN SAID SOLUTION AN EFFECTIVE CORROSION INHIBITING AMOUNT OF PROPARGYL CYCLOHEXYLAMINE WHILE SAID SOLUTION IS IN CONTACT WITH SAID METAL.
Claim 2
Independent Claim
39 words
A METHOD OF INHIBITING THE CORROSION OF METALS BY AN AQUEOUS SOLUTION OF A MINERAL ACID WHICH COMPRISES INCORPORATING IN SAID SOLUTION AN EFFECTIVE CORROSION INHIBITING AMOUNT OF PROPARGYL CYCLOHEXYLAMINE WHILE SAID SOLUTION IS IN CONTACT WITH SAID METAL.
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |