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Patent US2840594A successfully refreshed from Google Patents.
US2840594A
Expired / Lapsed
US
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Polyethoxy tertiary-alkyl benzoates
Assignee: Atlantic Richfield Co
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Filing: 1956-09-04
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Granted: 1958-06-24
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Expires: 1976-09-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Coates
- 👤 Robert M Lincoln
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:52
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C07; C07C; C07C69/00; C07C69/76; C07C69/78; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
8 words
POLYETHOXY TERTIARY ALKYL BENZOATES HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
8 words
POLYETHOXY TERTIARY ALKYL BENZOATES HAVING THE GENERAL FORMULA
Claim 3
Dependent Claim
17 words
THE PRODUCTS ACCORDING TO CLAIM 1 IN WHICH N HAS A VALUE OF FROM 10 TO 18.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |