US2915559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylphenoxypolyoxyglycol nonionic surface-active agents
Assignee: Dow Chemical Co
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Filing: 1956-12-10
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Granted: 1959-12-01
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Expires: 1976-12-10
Abstract
No abstract record available.
Inventors
- 👤 Lee H Horsley
- 👤 Harold O Seeburger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:20
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/30; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A COGENERIC MIXTURE OF COMPOUNDS CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
9 words
A COGENERIC MIXTURE OF COMPOUNDS CORRESPONDING TO THE FORMULA
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) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |