US3551087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simultaneous dyeing and bleaching of proteinaceous fibrous material
Assignee: BASF SE
•
Filing: 1965-09-29
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Granted: 1970-12-29
•
Expires: 1985-09-29
Abstract
No abstract record available.
Inventors
- 👤 Oswald Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:35
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/0024; D06L; D06L4/00; D06L4/10; D06L4/12; D06L4/15; D06P3/00; D06P3/02; D06P3/04; D06P3/06; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917; Y10S8/93; Y10S8/931
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-28 | 1974-06-29 | 1974-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-28 | 1978-06-29 | 1978-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-28 | 1982-06-29 | 1982-12-29 | $7700.00 | Window Closed / Lapsed |