Patent US2504295A successfully refreshed from Google Patents.
US2504295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing copolymers of butadiene-1, 3 and acrylonitrile with organic halogen compounds
Assignee: Monsanto Chemicals Ltd
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Filing: 1944-08-04
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Granted: 1950-04-18
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Expires: 1964-08-04
Abstract
No abstract record available.
Inventors
- 👤 David J Beaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:32
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
THE PROCESS OF CURING A SULFUR VULCANIZABLE RUBBERY COPOLYMER OBTAINED BY THE EMULSION COPOLYMERIZATION OF BUTADIENE-1,3 AND ACRYLONITRILE WHICH COMPRISES HEATING THE COPOLYMER WITHOUT SULFUR IN THE PRESENCE OF 2-10 PARTS ON THE COPOLYMER OF A LONG CHAIN ALKYL CHLORIDE CONSISTING SOLELY OF CARBON, HYDROGEN, AND CHLORINE ATOMS, AND CONTAINING AT LEAST 10 BUT NOT MORE THAN 16 CARBON ATOMS.
Claim 2
Dependent Claim
60 words
THE PROCESS OF CURING A SULFUR VULCANIZABLE RUBBERY COPOLYMER OBTAINED BY THE EMULSION COPOLYMERIZATION OF BUTADIENE-1,3 AND ACRYLONITRILE WHICH COMPRISES HEATING THE COPOLYMER WITHOUT SULFUR IN THE PRESENCE OF 2-10 PARTS ON THE COPOLYMER OF A LONG CHAIN ALKYL CHLORIDE CONSISTING SOLELY OF CARBON, HYDROGEN, AND CHLORINE ATOMS, AND CONTAINING AT LEAST 10 BUT NOT MORE THAN 16 CARBON ATOMS.
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) | 1953-04-17 | 1953-10-17 | 1954-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-17 | 1957-10-17 | 1958-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-17 | 1961-10-17 | 1962-04-18 | $7700.00 | Window Closed / Lapsed |