Patent US3448501A successfully refreshed from Google Patents.
US3448501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of a compacted yarn
Assignee: Rhone Poulenc SA
•
Filing: 1967-05-15
•
Granted: 1969-06-10
•
Expires: 1987-05-15
Abstract
No abstract record available.
Inventors
- 👤 Michel Buzano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:36
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/08; D01; D01H; D01H7/00; D01H7/02; D01H7/52; D01H7/60; D02G; D02G1/00; D02G1/16; D02G1/168; Y; Y10; Y10S; Y10S57/00; Y10S57/908
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |