Patent US3607778A successfully refreshed from Google Patents.
US3607778A
Expired / Lapsed
US
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Anionic surface-active agents from epoxyalkanes and method for their production
Assignee: Atlantic Richfield Co
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Filing: 1968-06-25
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Granted: 1971-09-21
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Expires: 1988-06-25
Abstract
Abstract Random epoxyalkanes in the C8-C20 range are reacted with ethylene glycol to produce a hydroxy ether having a primary alcohol group, which reaction product is sulfated to produce an anionic surface active agent.
Inventors
- 👤 Robert M Lincoln
- 👤 Joseph A Meyers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:10
CPC Classifications
C; C07; C07C; C07C305/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
The anionic surface active agents produced in accordance with the method of claim 1.
Claim 2
Dependent Claim
21 words
The method according to claim 1 wherein the random epoxyalkanes contain 16 carbon atoms and the salt is the sodium salt.
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |