US2901371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sizing compositions containing fatty acid
Assignee: Wyeth Holdings LLC
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Filing: 1957-06-12
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Granted: 1959-08-25
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Expires: 1977-06-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Herbert G Arlt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:25
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A SELF-EMULSIFYLING COMPOSITION OF MATTER USEFUL IN THE MANUFACTURE OF SAID PAPER CONSISTING ESSENTIALLY OF A BLEND OF A HIGHER ALIPHATIC HYDROPHOBIC WATER-INSOLUBLE KETENE DIMER AND A SUFFICIENT AMOUNT, LESS THAN 5% BY WEIGHT THEREOF, OF A HIGHER FATTY ACID AS EMULSIFYING AGENT AND EMULSION STABILIZER, SAID KETENE DIMER HAVING SIDE CHAINS COMPOSED OF HYDROGEN AND CARBON ATOMS ONLY.
Claim 2
Dependent Claim
59 words
A SELF-EMULSIFYLING COMPOSITION OF MATTER USEFUL IN THE MANUFACTURE OF SAID PAPER CONSISTING ESSENTIALLY OF A BLEND OF A HIGHER ALIPHATIC HYDROPHOBIC WATER-INSOLUBLE KETENE DIMER AND A SUFFICIENT AMOUNT, LESS THAN 5% BY WEIGHT THEREOF, OF A HIGHER FATTY ACID AS EMULSIFYING AGENT AND EMULSION STABILIZER, SAID KETENE DIMER HAVING SIDE CHAINS COMPOSED OF HYDROGEN AND CARBON ATOMS ONLY.
References Cited (Backward Citations)
US2627477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |