US3578729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic polyester molding compositions
Assignee: Hoechst AG
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Filing: 1968-07-11
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Granted: 1971-05-11
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Expires: 1988-07-11
Abstract
Abstract MOLDING COMPOSITIONS WHICH CAN BE PROCESSED THERMOPLASTICALLY ARE PREPARED FROM A MIXTURE OF LINEAR SATURATED POLYESTERS AND A-OLEFIN-ACRYLIC ACID ESTER COPOLYMERS AND ARE DISTINGUISHED BY A HIGH IMPACT STRENGTH.
Inventors
- 👤 Ludwig Brinkmann
- 👤 Walter Herwig
- 👤 Harald Cherdron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:26
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |