US2623818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of corrosion in nitrophenolic compositions
Assignee: Dow Chemical Co
•
Filing: 1951-10-01
•
Granted: 1952-12-30
•
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
2026-10-25 22:11
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A COMPOSITION OF MATTER COMPRISING AN AROMATIC SOLVENT OIL, AND DISSOLVED IN THE SOLVENT OIL (1) A 2,4-DINITRO-6-ALKYL-PHENOL OF THE FORMULA
Claim 2
Dependent Claim
21 words
A COMPOSITION OF MATTER COMPRISING AN AROMATIC SOLVENT OIL, AND DISSOLVED IN THE SOLVENT OIL (1) A 2,4-DINITRO-6-ALKYL-PHENOL OF THE FORMULA
References Cited (Backward Citations)
US2007433A
Cited
US2392859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |