Patent US2430273A successfully refreshed from Google Patents.
US2590211A
Expired / Lapsed
US
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Flameproof thermoplastic molding compositions
Assignee: Diamond Shamrock Corp
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Filing: 1947-09-18
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Granted: 1952-03-25
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Expires: 1967-09-18
Abstract
No abstract record available.
Inventors
- 👤 George F Rugar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:11
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/08; C; C08; C08K; C08K13/00; C08K13/02; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/02; C08L; C08L1/00; C08L1/08; C08L1/10; C08L1/14; C08L21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A COMPOSTION OF MATTER CONSISTING OF A MOLDABLE THERMOPLASTIC COMPOSITION OF SUBSTANTIAL FLAMEPROOF PROPERTIES, SAID COMPOSITION BEING AN INTIMATE MIXTURE OF AT LEAST 50% OF A THERMOPLASTIC MATERIAL AND AT LEAST 15% OF A FLAMEPROOFING MIXTURE, SAID THERMOPLASTIC MATERIAL AND SAID FLAMEPROOFING MIXTURE BEING SUBSTANTIALLY 100% OF SAID COMPOSITION, SAID FLAMEPROOFING MIXTURE CONSISTING OF A HIGHLY CHLORINATED ORGANIC ALIPHATIC COMPOUND HAVING MORE THAN 3 CARBON ATOMS AND BETWEEN 50% AND 80% OF CHEMICALLY COMBINED CHLORINE, AN INORGANIC FLAME RETARDANT COMPOUND SELECTED FROM THE GROUP CONSISTING OF BISMUTH SULFIDE, ARSENIC SULFIDE, AND MONY OXIDE, BISMUTH OXIDE, ARSENIC SULFIDE, ANDD ANTIMONY SULFIDE, AND A STABILIZER FOR SAID HIGHLY CHLORINATED ORGANIC COMPOSITION, SAID STABILIZER HAVING INAPPRECIABLE VAPOR PRESSURE AT TEMPERATURE OF THE ORDER OF 300-450* F., HAVING A STABILIZING INFLUENCE AT SUCH TEMPERATURES, AND HAVING INAPPRECIABLE STABILIZING INFLUENCE AT FLAME TEMPERATURES.
Claim 2
Dependent Claim
138 words
A COMPOSTION OF MATTER CONSISTING OF A MOLDABLE THERMOPLASTIC COMPOSITION OF SUBSTANTIAL FLAMEPROOF PROPERTIES, SAID COMPOSITION BEING AN INTIMATE MIXTURE OF AT LEAST 50% OF A THERMOPLASTIC MATERIAL AND AT LEAST 15% OF A FLAMEPROOFING MIXTURE, SAID THERMOPLASTIC MATERIAL AND SAID FLAMEPROOFING MIXTURE BEING SUBSTANTIALLY 100% OF SAID COMPOSITION, SAID FLAMEPROOFING MIXTURE CONSISTING OF A HIGHLY CHLORINATED ORGANIC ALIPHATIC COMPOUND HAVING MORE THAN 3 CARBON ATOMS AND BETWEEN 50% AND 80% OF CHEMICALLY COMBINED CHLORINE, AN INORGANIC FLAME RETARDANT COMPOUND SELECTED FROM THE GROUP CONSISTING OF BISMUTH SULFIDE, ARSENIC SULFIDE, AND MONY OXIDE, BISMUTH OXIDE, ARSENIC SULFIDE, ANDD ANTIMONY SULFIDE, AND A STABILIZER FOR SAID HIGHLY CHLORINATED ORGANIC COMPOSITION, SAID STABILIZER HAVING INAPPRECIABLE VAPOR PRESSURE AT TEMPERATURE OF THE ORDER OF 300-450* F., HAVING A STABILIZING INFLUENCE AT SUCH TEMPERATURES, AND HAVING INAPPRECIABLE STABILIZING INFLUENCE AT FLAME TEMPERATURES.
References Cited (Backward Citations)
GB418230A
Cited
US2073004A
Cited
US2125393A
Cited
US2299612A
Cited
US2421409A
Cited
US2378715A
Cited
US2462422A
Cited
US2428282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |