US3406152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified fiber- and film-forming polyesters and improved fibers and filaments made therefrom
Assignee: Hoechst AG
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Filing: 1965-07-15
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Granted: 1968-10-15
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Expires: 1985-07-15
Abstract
No abstract record available.
Inventors
- 👤 Koller Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:30
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/58; D01F6/62; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0836; C08; C08G; C08G63/00; C08G63/78; C08G63/82; C08G63/83; C08K; C08K5/00; C08K5/54; C08K5/5406; D01F1/00; D01F1/02; D01F1/10
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) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |