US2587477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of synthetic rubber
Assignee: Uniroyal Inc
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Filing: 1948-03-17
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Granted: 1952-02-26
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Expires: 1968-03-17
Abstract
No abstract record available.
Inventors
- 👤 Byron A Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:49
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/5398
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A STABILIZED COMPOSITION OF AN ELASTOMERIC POLYMERIZATION PRODUCT OF BUTADIENE AND A COPOLYMERIZABLE VINYL MONOMER SELECTED FROM THE CLASS CONSISTING OF STYRENE AND ACRYLONITRILE, CONTAINING, BY WEIGHT, BASED ON THE SAID POLYMERIZATION PRODUCT, FROM 0.05 TO 5 PERCENT OF A STABILIZER CONSISTING OF AN ALIPHATIC HYDROCARBON ACID ESTER OF A PHOSPHORIC ACID CONTAINING FROM 1 TO 4 PENTAVALENT PHOSPHORUS ATOMS.
Claim 2
Dependent Claim
60 words
A STABILIZED COMPOSITION OF AN ELASTOMERIC POLYMERIZATION PRODUCT OF BUTADIENE AND A COPOLYMERIZABLE VINYL MONOMER SELECTED FROM THE CLASS CONSISTING OF STYRENE AND ACRYLONITRILE, CONTAINING, BY WEIGHT, BASED ON THE SAID POLYMERIZATION PRODUCT, FROM 0.05 TO 5 PERCENT OF A STABILIZER CONSISTING OF AN ALIPHATIC HYDROCARBON ACID ESTER OF A PHOSPHORIC ACID CONTAINING FROM 1 TO 4 PENTAVALENT PHOSPHORUS 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) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |