US3047541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the continuous production of polyamide fibers and ribbons
Assignee: Inventa AG fuer Forschung und Patentverwertung
•
Filing: 1958-08-05
•
Granted: 1962-07-31
•
Expires: 1978-08-05
Abstract
No abstract record available.
Inventors
- 👤 Ryffel Kaspar
- 👤 Schweizer Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:54
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/14; C08G69/16; D; D01; D01F; D01F6/00; D01F6/58; D01F6/60; Y; Y10; Y10S; Y10S264/00; Y10S264/56
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2241321A
Cited
US2241322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |