Patent US2728737A successfully refreshed from Google Patents.
US2728737A
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US
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Polyamide suspensoid
Assignee: General Mills Inc
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Filing: 1951-01-02
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Granted: 1955-12-27
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Expires: 1971-01-02
Abstract
No abstract record available.
Inventors
- 👤 Wittcoff Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:58
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08L; C08L21/00; C08L21/02; C08J2377/00; C08J2377/06; C08J2377/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A SUSPENSOID IN AN AQUEOUS MEDIUM OF A POLYAMIDE HAVING THE POLYACYL GROUP OF POLYMERIZED POLYENE FATTY ACIDS, AND THE POLYAMINO GROUP OF AN ALIPHATIC POLYAMINE, THE POLYAMIDE HAVING A MOLEUCLAR WEIGHT WITHIN THE APPROXIMATE RANGE OF 1,000 TO 10,000 SAID POLYAMIDE HAVING A CARBOXYL NUMBER WITHIN THE APPROXMATE RANGE OF 1-100 AND BEING DISPERSED IN THE AQUEOUS MEDIUM BY MEANS OF SUFFICIENT ALKALINE MATERIAL TO REACT WITH CARBOXYL GROUPS IN THE POLYAMIDE TO FORM SALT GROUPS TO STABILIZED THE SUSPENSOID.
Claim 2
Dependent Claim
81 words
A SUSPENSOID IN AN AQUEOUS MEDIUM OF A POLYAMIDE HAVING THE POLYACYL GROUP OF POLYMERIZED POLYENE FATTY ACIDS, AND THE POLYAMINO GROUP OF AN ALIPHATIC POLYAMINE, THE POLYAMIDE HAVING A MOLEUCLAR WEIGHT WITHIN THE APPROXIMATE RANGE OF 1,000 TO 10,000 SAID POLYAMIDE HAVING A CARBOXYL NUMBER WITHIN THE APPROXMATE RANGE OF 1-100 AND BEING DISPERSED IN THE AQUEOUS MEDIUM BY MEANS OF SUFFICIENT ALKALINE MATERIAL TO REACT WITH CARBOXYL GROUPS IN THE POLYAMIDE TO FORM SALT GROUPS TO STABILIZED THE SUSPENSOID.
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) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |