Patent US3573091A successfully refreshed from Google Patents.
US3573091A
Expired / Lapsed
US
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Method of preparing water-dispersible softener compositions and products thereby
Assignee: Armour and Co
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Filing: 1967-11-13
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Granted: 1971-03-30
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Expires: 1987-11-13
Abstract
Abstract POWDERED QUATERNARY SOFTENERS PREPARED BY SPRAYING A SOLVENT SOLUTION OF THE QUATERNARY ON A WATER SOLUBLE CARRIER WHILE AGITATING THE CARRIER SO AS TO COAT THE CARRIER PARTICLES WITHOUT APPRECIABLE CHEMICAL REACTION BETWEEN THE CARRIER AND THE QUATERNARY.
Inventors
- 👤 Milton M Waldman
- 👤 Andrea E Mariahazy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:31
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/62; C11D3/00; C11D3/0005; C11D3/001; D; D06; D06M; D06M23/00
Claims Analysis
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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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |