US3460171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the continuous dyeing of articles made from polyacrylonitrile fibers with cationic dyestuffs
Assignee: Bayer AG
•
Filing: 1966-05-13
•
Granted: 1969-08-12
•
Expires: 1986-05-13
Abstract
No abstract record available.
Inventors
- 👤 Walter Hees
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:30
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/70; D06P3/76; D06P1/00; D06P1/44; D06P1/60; D06P1/607; D06P1/6076; D06P1/613; D06P1/6131; D06P1/6136; D06P1/64; D06P1/651; D06P1/65106; D06P1/65125; D06P3/82; D06P3/8204; D06P3/8266; Y; Y10; Y10S; Y10S8/00; Y10S8/907
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) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |