Patent US2666040A successfully refreshed from Google Patents.
US2666040A
Expired / Lapsed
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Heat stabilization of vinylidene chloride resins
Assignee: Bridgestone Firestone Inc
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Filing: 1953-02-20
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Granted: 1954-01-12
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Expires: 1973-02-20
Abstract
No abstract record available.
Inventors
- 👤 Chris E Best
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:58
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1515
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A HEAT-STABILIZED COMPOSITION COMPRISING A CRYSTALLINE RESIN SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF VINYLIDENE CHLORIDE AND COPOLYMERS THEREOF WITH OTHER ETHYLENICALLY UNSATURATED COMPOUNDS COPOLYMERIZABLE THEREWITH, SAID COPOLYMERS CONTAINING AT LEAST 80% OF VINYLIDENE CHLORIDE COPOLYMERIZED THEREIN, TOGETHER WITH FROM 0.5 TO 4.0% OF PENTACHLOROPHENOXY PROPENE OXIDE HOMOGENEOUSLY COMPOUNDED THEREWITH, SAID PERCENTAGES BEING ON THE BASIS OF THE WEIGHT OF SAID RESIN.
Claim 2
Dependent Claim
63 words
A HEAT-STABILIZED COMPOSITION COMPRISING A CRYSTALLINE RESIN SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF VINYLIDENE CHLORIDE AND COPOLYMERS THEREOF WITH OTHER ETHYLENICALLY UNSATURATED COMPOUNDS COPOLYMERIZABLE THEREWITH, SAID COPOLYMERS CONTAINING AT LEAST 80% OF VINYLIDENE CHLORIDE COPOLYMERIZED THEREIN, TOGETHER WITH FROM 0.5 TO 4.0% OF PENTACHLOROPHENOXY PROPENE OXIDE HOMOGENEOUSLY COMPOUNDED THEREWITH, SAID PERCENTAGES BEING ON THE BASIS OF THE WEIGHT OF SAID RESIN.
References Cited (Backward Citations)
US2221771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |