US2564759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibitor composition
Assignee: Hercules Powder Co
•
Filing: 1950-06-03
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Granted: 1951-08-21
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Expires: 1970-06-03
Abstract
No abstract record available.
Inventors
- 👤 Homer H Haggard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:39
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/04; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A CORROSION INHIBITOR COMPOSITION FOR ADDITION TO AQUEOUS SOLUTIONS NORMALLY CORROSIVE TO METAL SURFACES CONSISTING ESSENTIALLY OF 5 TO 50% OF A PRIMARY ROSIN AMINE AND A COMPLEMENT OF A MATERIAL OF THE FORMULA
Claim 2
Dependent Claim
34 words
A CORROSION INHIBITOR COMPOSITION FOR ADDITION TO AQUEOUS SOLUTIONS NORMALLY CORROSIVE TO METAL SURFACES CONSISTING ESSENTIALLY OF 5 TO 50% OF A PRIMARY ROSIN AMINE AND A COMPLEMENT OF A MATERIAL OF THE FORMULA
References Cited (Backward Citations)
US2194429A
Cited
US2510063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |