Patent US2778136A successfully refreshed from Google Patents.
Patent US2739136A successfully refreshed from Google Patents.
US2739136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic rubber latices
Assignee: Emulsol Chemical Corp
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Filing: 1951-10-10
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Granted: 1956-03-20
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Expires: 1971-10-10
Abstract
No abstract record available.
Inventors
- 👤 Morris S Kharasch
- 👤 Nudenberg Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:02
CPC Classifications
C; C08; C08F; C08F4/00; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
IN THE PREPARATION OF SYNTHETIC LATICES BY THE EMULSION POLYMERIZATION OF MONOMERS, THE STEP WHICH COMPRISES CARRYING OUT SAID POLYMERIZATION IN THE PRESENCE OF A SMALL PROPORTION OF A CHEMICAL COMPOUND IN THE FORM OF AN HYDROXY AMINE IN WHICH AMINE HYDROGEN IS REPLACED BY AN ALIPHATIC CARBOXYLIC ACID ACYL RADICAL CONTAINING FROM 8 TO 24 CARBON ATOMS AND IN WHICH HYDROXYL HYDROGEN IS REPLACED BY A SULFOPOLYCARBOXYLIC ACID ACYL RADICAL.
Claim 2
Dependent Claim
71 words
IN THE PREPARATION OF SYNTHETIC LATICES BY THE EMULSION POLYMERIZATION OF MONOMERS, THE STEP WHICH COMPRISES CARRYING OUT SAID POLYMERIZATION IN THE PRESENCE OF A SMALL PROPORTION OF A CHEMICAL COMPOUND IN THE FORM OF AN HYDROXY AMINE IN WHICH AMINE HYDROGEN IS REPLACED BY AN ALIPHATIC CARBOXYLIC ACID ACYL RADICAL CONTAINING FROM 8 TO 24 CARBON ATOMS AND IN WHICH HYDROXYL HYDROGEN IS REPLACED BY A SULFOPOLYCARBOXYLIC ACID ACYL RADICAL.
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) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |