US2914558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of aryloxyaliphatic acid substances
Assignee: Ethyl Corp
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Filing: 1953-06-30
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Granted: 1959-11-24
•
Expires: 1973-06-30
Abstract
No abstract record available.
Inventors
- 👤 Harry D Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:54
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07C59/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
PROCESS FOR THE MANUFACTURE OF ALKALI METAL SALTS OF POLYCHLOROARYLOXY ALIPHATIC ACIDS, COMPRISING REACTING IN METHANOL MEDIUM FOR FROM ABOUT 0.5 TO ABOUT 3 HOURS AT A TEMPERATURE OF 100-150*C. AN ALKALI METAL SALT OF A POLYCHLOROPHENOL WITH AN ALKALI METAL SALT OF A LOWER SATURATED ALPHA-HALOALIPHATIC ACID.
Claim 2
Dependent Claim
48 words
PROCESS FOR THE MANUFACTURE OF ALKALI METAL SALTS OF POLYCHLOROARYLOXY ALIPHATIC ACIDS, COMPRISING REACTING IN METHANOL MEDIUM FOR FROM ABOUT 0.5 TO ABOUT 3 HOURS AT A TEMPERATURE OF 100-150*C. AN ALKALI METAL SALT OF A POLYCHLOROPHENOL WITH AN ALKALI METAL SALT OF A LOWER SATURATED ALPHA-HALOALIPHATIC ACID.
References Cited (Backward Citations)
GB573476A
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GB573479A
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US2493126A
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US2509772A
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US2516611A
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US2656382A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |