US3451762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the continuous coloring of fibres made from natural or synthetic polyamides or of materials containing fibres of this type
Assignee: Bayer AG
•
Filing: 1965-07-09
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Granted: 1969-06-24
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Expires: 1985-07-09
Abstract
No abstract record available.
Inventors
- 👤 Udo Winfried Hendricks
- 👤 Ergun Tamer
- 👤 Mathieu Quaedvlieg
- 👤 Hans Klapper
- 👤 Gunther Boehmke
- 👤 Otto Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:13
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/60; D06P1/607; D06P1/613; D06P1/6131; D06P1/6135; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917; Y10S8/92; Y10S8/924
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) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |