US3395119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of linear thermoplastic mixed polyesters
Assignee: Chemische Werke Witten GmbH
•
Filing: 1964-06-23
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Granted: 1968-07-30
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Expires: 1984-06-23
Abstract
No abstract record available.
Inventors
- 👤 Blaschke Franz
- 👤 Ludwig Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:30
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3161615A
Cited
GB870095A
Cited
US3169121A
Cited
US3000849A
Cited
US3207814A
Cited
FR1354473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |