US3382216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent thermoplastic terephthalic acid containing polyamides having softening temperatures above 100 deg. c.
Assignee: Chemische Werke Witten GmbH
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Filing: 1964-06-23
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Granted: 1968-05-07
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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
2026-10-24 21:16
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |