US2630380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibition
Assignee: Dow Chemical Co
•
Filing: 1951-10-01
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Granted: 1953-03-03
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Expires: 1971-10-01
Abstract
No abstract record available.
Inventors
- 👤 William J Hanson
- 👤 Robert W Nex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:42
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/12; C23F11/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A COMPOSITION OF MATTER COMPRISING (1) A DINITRO-ALKYL-PHENOL OF THE FORMULA
Claim 2
Dependent Claim
11 words
A COMPOSITION OF MATTER COMPRISING (1) A DINITRO-ALKYL-PHENOL OF 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) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |