US3595938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylene glycol terephthalate/poly - 1.4 -dimethylol-cyclohexane terephthalate block copolyester thermoplastic moulding compositions
Assignee: Hoechst AG
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Filing: 1968-09-26
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Granted: 1971-07-27
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Expires: 1988-09-26
Abstract
Abstract THERMOPLASTIC MOULDING COMPOSITIONS COMPRISING BLOCK COPOLYETERS OF POLYETHYLENE GLYCOL TEREPHTHALATE UNITS AND POLY-1,4 -DIMETHYLOLCYCLOHEXANE TEREPHTHALATE UNITS FROM WHICH MOULDINGS HAVING A HIGH IMPACT STRENGTH AND BENDING STRENGTH CAN BE PRODUCED.
Inventors
- 👤 Klaus Weissermel
- 👤 Ludwig Brinkmann
- 👤 Walter Herwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:45
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |