US3822332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of amorphous transparent polyethylene mouldings by the combined injection and blow moulding technique
Assignee: Novartis AG
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Filing: 1971-08-24
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Granted: 1974-07-02
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Expires: 1991-08-24
Abstract
Abstract THE PRODUCTION OF TRANSPARENT AMORPHOUS ARTICLES FROM POLYETHYLENE TEREPHTHALATES BY USING A POLYESTER OF AN INTRINSIC VISCOSITY OF AT LEAST 0.7 DL/G. AND A CRYSTALLISATION TEMPERATURE OF AT LEAST 150*C.
Inventors
- 👤 J Hrach
- 👤 F Breitenfellner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:54
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/18; C08G63/181; B; B29; B29B; B29B13/00; B29C; B29C49/00; B29C49/0005; Y; Y10; Y10S; Y10S264/00; Y10S264/50; Y10S264/64
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |