Patent US3305491A successfully refreshed from Google Patents.
US3305491A
Expired / Lapsed
US
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Anti-caking agent
Assignee: PROD CHIM D AUBY SOC D
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Filing: 1963-05-23
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Granted: 1967-02-21
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Expires: 1983-05-23
Abstract
No abstract record available.
Inventors
- 👤 Oster Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:24
CPC Classifications
C; C01; C01D; C01D3/00; C01D3/26; B; B01; B01J; B01J2/00; B01J2/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A CATIO-ANIO SURFACE ACTIVE COMPOSITION FOR ADDITION TO SALTS TO PREVENT CAKING OF SAID SALTS, SAID COMPOSITION BEING CONSTITUTED BY AN AMINO COMPONENT COMPRISING A FATTY AMINE SALT OF FATTY ACID, AND ANOTHER COMPONENT COMPRISING AT LEAST ONE FREE FATTY ACID WHICH IS IN ADDITION TO THE FATTY ACID EMPLOYED IN FORMING SAID AMINO COMPONENT, SAID COMPOSITION BEING A MIXTURE OF THE FORMULA:
Claim 2
Dependent Claim
63 words
A CATIO-ANIO SURFACE ACTIVE COMPOSITION FOR ADDITION TO SALTS TO PREVENT CAKING OF SAID SALTS, SAID COMPOSITION BEING CONSTITUTED BY AN AMINO COMPONENT COMPRISING A FATTY AMINE SALT OF FATTY ACID, AND ANOTHER COMPONENT COMPRISING AT LEAST ONE FREE FATTY ACID WHICH IS IN ADDITION TO THE FATTY ACID EMPLOYED IN FORMING SAID AMINO COMPONENT, SAID COMPOSITION BEING A MIXTURE OF THE FORMULA:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |