US3523749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing viscose rayon and nylon with subsequent fixation in a halogenated hydrocarbon bath
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1966-09-26
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Granted: 1970-08-11
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Expires: 1986-09-26
Abstract
No abstract record available.
Inventors
- 👤 John Kenneth Macleod
- 👤 Kenneth Gordon Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:10
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/02; D06P5/04; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/6515; D06P1/90; D06P1/92; D06P1/922; D06P3/00; D06P3/02; D06P3/04; D06P3/24; D06P3/241; D06P3/58; D06P3/60; D06P3/66; Y; Y10; Y10S; Y10S8/00; Y10S8/90; Y10S8/901; Y10S8/907; Y10S8/916; Y10S8/918; Y10S8/92; Y10S8/924; Y10S8/929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2274751A
Cited
US1533769A
Cited
US2828180A
Cited
GB768745A
Cited
US2999002A
Cited
US3215486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |