Patent US2603654A successfully refreshed from Google Patents.
US2603654A
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Polyethylene glycol esters of alpha-(alkylmercapto) propionic acid
Assignee: Monsanto Chemicals Ltd
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Filing: 1949-09-30
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Granted: 1952-07-15
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Expires: 1969-09-30
Abstract
No abstract record available.
Inventors
- 👤 Kosmin Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:47
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/002; C07; C07C; C07C323/00; C10; C10M; C10M1/00; C10M1/08; C10M2221/00; C10M2221/02; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06; Y10S516/905; Y10S516/917; Y10S516/918
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
19 words
POLYETHYLENE GLYCOL ESTERS OF A-(TERT. ALKYLMERCAPTO) PROPIONIC ACID, THE ALKYLGROUP OF WHICH CONTAINS FROM 8 TO 16 CARBON ATOMS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |