Patent US2847472A successfully refreshed from Google Patents.
US2847472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensation products of 2, 3-dichloroaniline and a benzaldehyde compound
Assignee: Dow Chemical Co
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Filing: 1957-04-10
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Granted: 1958-08-12
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Expires: 1977-04-10
Abstract
No abstract record available.
Inventors
- 👤 Dale N Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:24
CPC Classifications
C; C07; C07C; C07C251/00; C07C251/02; C07C251/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A-(2,3-DICHLOROPHENYLIMINO)-O-CRESOL, 4-CHLORO-A-(2,3-DICHLOROPHENYLIMINO)-O-CRESOL, AND 4,6-DICHLORO-A-(2,3-DICHLOROPHENYLIMINO)-O-CRESOL.
Claim 2
Dependent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A-(2,3-DICHLOROPHENYLIMINO)-O-CRESOL, 4-CHLORO-A-(2,3-DICHLOROPHENYLIMINO)-O-CRESOL, AND 4,6-DICHLORO-A-(2,3-DICHLOROPHENYLIMINO)-O-CRESOL.
References Cited (Backward Citations)
US2418747A
Cited
US2583729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |