US3767613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon black pigmented flame retardant thermoplastic polymer compositions stabilized against degradationat polymer melt temperatures
Assignee: Phillips Petroleum Co
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Filing: 1972-01-28
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Granted: 1973-10-23
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Expires: 1992-01-28
Abstract
Abstract THERMAL DEGRADATION OF CARBON BLACK PIGMENTED FLAME RETARDANT THERMOPLASTIC POLYMER COMPOSITIONS IS SUBSTANTIALLY REDUCED BY SULFUR AND/OR ORGANOSULFUR COMPOUNDS.
Inventors
- 👤 J Dix
- 👤 J Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:27
CPC Classifications
C; C08; C08K; C08K13/00; C08K13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |