US3544363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyed textile materials having improved wet fastness properties and method of producing same
Assignee: Cassella Farbwerke Mainkur AG
•
Filing: 1969-05-26
•
Granted: 1970-12-01
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Expires: 1989-05-26
Abstract
No abstract record available.
Inventors
- 👤 Hermann Rath
- 👤 Karl Bredereck
- 👤 Horst Rieckert
- 👤 Hans Toepffer
- 👤 Otto Trosken
- 👤 Hanswilli Von Brachel
- 👤 Christian Heid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:14
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/30; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2762; Y10T442/277
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA734324A
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US2104092A
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US2926154A
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US3066005A
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US3278560A
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US3361590A
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US3247048A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |