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US2623907A
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2, 2'-alkylidene-bis (6-alkyl-4-chlorophenols)
Assignee: Dow Chemical Co
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Filing: 1949-08-27
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Granted: 1952-12-30
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Expires: 1969-08-27
Abstract
No abstract record available.
Inventors
- 👤 Clarence L Moyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:47
CPC Classifications
C; C07; C07C; C07C39/00; C07C39/24; C07C39/367
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A 2,2'' - ALKYLIDENE - BIS(6 - ALKYL-4-CHLOROPHENOL) HAVING THE FORMULA
Claim 2
Dependent Claim
11 words
A 2,2'' - ALKYLIDENE - BIS(6 - ALKYL-4-CHLOROPHENOL) HAVING THE FORMULA
References Cited (Backward Citations)
US1707181A
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 |