US2868752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable emulsion containing an acrylate, acrylic acid, and an acrylonitrile
Assignee: Wyeth Holdings LLC
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Filing: 1955-09-23
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Granted: 1959-01-13
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Expires: 1975-09-23
Abstract
No abstract record available.
Inventors
- 👤 Frazier Charles
- 👤 James H Fortune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:44
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A THERMOPLASTIC FREEZE-THAW AND MECHANICALLY STABLE TRIPOLYMER EMULSION COMPOSITION HAVING A PH GREATER THAN 7 COMPRISING THE REACTION PRODUCT OF (1) FROM ABOUT 1% TO 10% BASED ON THE TOTAL WEIGHT OF THE MONOMER CONTENT OF AN ALKALI METAL SALT OF A SULFATED FATTY ACID EMULSIFIER WHEREIN SAID ACID CONTAINS FROM 10 TO 16 CARBON ATOMS, CONTAINING AS SOLE MONOMERS (2) AN A-UNSATURATED POLYMERIZABLE MONOCARBOXYLIC ACID MONOMER HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
71 words
A THERMOPLASTIC FREEZE-THAW AND MECHANICALLY STABLE TRIPOLYMER EMULSION COMPOSITION HAVING A PH GREATER THAN 7 COMPRISING THE REACTION PRODUCT OF (1) FROM ABOUT 1% TO 10% BASED ON THE TOTAL WEIGHT OF THE MONOMER CONTENT OF AN ALKALI METAL SALT OF A SULFATED FATTY ACID EMULSIFIER WHEREIN SAID ACID CONTAINS FROM 10 TO 16 CARBON ATOMS, CONTAINING AS SOLE MONOMERS (2) AN A-UNSATURATED POLYMERIZABLE MONOCARBOXYLIC ACID MONOMER HAVING THE GENERAL FORMULA:
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) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |