Patent US3021372A successfully refreshed from Google Patents.
US3021372A
Expired / Lapsed
US
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Low foam, high wetting polypropyleneterminated alkylphenoxypolyethoxyalkanols
Assignee: Rohm and Haas Co
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Filing: 1959-07-16
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Granted: 1962-02-13
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Expires: 1979-07-16
Abstract
No abstract record available.
Inventors
- 👤 Dupre Jean
- 👤 Robert E Wolfrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:38
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/722; C11D3/00; C11D3/0005; C11D3/0026; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
AS A COMPOSITION OF MATTER, THE COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
10 words
AS A COMPOSITION OF MATTER, THE COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US2903486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |