Patent US3236582A successfully refreshed from Google Patents.
US3236582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of dyeing polyurethane shaped article with water-soluble reactive dyestuffs
Assignee: Nippon Kayaku Co Ltd
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Filing: 1962-04-27
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Granted: 1966-02-22
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Expires: 1982-04-27
Abstract
No abstract record available.
Inventors
- 👤 Ueda Komao
- 👤 Hara Osamu
- 👤 Maekawa Seiji
- 👤 Hirasawa Yutaka
- 👤 Hashimoto Matsuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:02
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/24; D06P3/241; D06P1/00; D06P1/44; D06P1/655; D06P1/66; D06P3/248; D06P5/00; D06P5/02; Y; Y10; Y10S; Y10S8/00; Y10S8/913; Y10S8/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
THE PROCESS FOR THE COLOURING A POLURETHANE SHAPED ARTICLE WITH A DYEING BATH CONTAINING A WATER SOLUBLE REACTIVE DYESTUFF AND A CATIONIC SURFACTANT.
Claim 2
Dependent Claim
23 words
THE PROCESS FOR THE COLOURING A POLURETHANE SHAPED ARTICLE WITH A DYEING BATH CONTAINING A WATER SOLUBLE REACTIVE DYESTUFF AND A CATIONIC SURFACTANT.
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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |