US2993872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous composition comprising werner complex, a starch, hydrogenated vegetable oil and emulsifying agent and method of preparing same
Assignee: Owens Corning
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Filing: 1957-12-23
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Granted: 1961-07-25
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Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Roland K Gagnon
- 👤 Gerald E Rammel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:13
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/11
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
AN AQUEOUS COMPOSITION FOR SIZING FIBERS CONTAINING FROM 1-10 PERCENT BY WEIGHT OF A WERNER COMPLEX COMPOUND IN WHICH AN ACIDO GROUPS COORDINATED WITH A TRIVALENT NUCLEAR CHROMIUM ATOM CONTAINS FROM 10-18 CARBON ATOMS IN COMBINATION WITH 3-10 PERCENT BY WEIGHT OF A PARTIALLY DEXTRINIZED STARCH, 3-10 PERCENT BY WEIGHT OF A HYDROGENATED VEGETABLE OIL LUBRICANT, FROM 0.1-10 PERCENT BY WEIGHT OF AN EMULSIFYING AGENT, FROM 0.4-4 PERCENT BY WEIGHT OF A FATTY ACID CATIONIC AMINE SOFTENING AGENT, FROM 0.03-2.0 PERCENT BY WEIGHT OF GELATIN, AND FROM 0.05-1.0 PERCENT BY WEIGHT OF POLYVINYL ALCOHOL.
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) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |