Patent US3429017A successfully refreshed from Google Patents.
US3429017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making piece-dyeable frieze carpets from heat-set multicomponent acrylic fiber yarn
Assignee: EIDP Inc
•
Filing: 1964-10-14
•
Granted: 1969-02-25
•
Expires: 1984-10-14
Abstract
No abstract record available.
Inventors
- 👤 Winfried T Holfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:48
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/18; Y; Y10; Y10S; Y10S57/00; Y10S57/905
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3038936A
Cited
US3111366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |