US3545910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing mixtures of cellulosic and polyester fibers with reactive and disperse dyestuffs
Assignee: Hoechst AG
•
Filing: 1967-02-21
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Granted: 1970-12-08
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Expires: 1987-02-21
Abstract
No abstract record available.
Inventors
- 👤 Sien Ling Ong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:53
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/58; D06P3/60; D06P3/66; D06P3/82; D06P3/8204; D06P3/8223; D06P3/8238; D06P3/8252; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922
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) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |