US3575931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylene terephthalate molding compositions containing dispersible nucleating agents
Assignee: Honeywell International Inc
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Filing: 1970-04-06
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Granted: 1971-04-20
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Expires: 1990-04-06
Abstract
Abstract POLYETHYLENE TEREPHTHALATE CONTAINING DISPERSIBLE NUCLEATING AGENTS WHICH ARE SOLIDS UP TO 140*C. AND WHICH MELT BELOW 225*C. SUCH AS METALLIC STEARATES, CHLORIDES AND HIGHLY POLAR ORGANIC COMPOUNDS CAN BE INJECTION MOLDED. SHAPED ARTICLES HAVE IMPROVED IMPACT RESISTANCE.
Inventors
- 👤 Norman Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0083; C08K3/00; C08K3/01
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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |