US2869968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dyeing mixtures of animal fibers and synthetic polyamide fibers with reservation of the latter
Assignee: Saul and Co
•
Filing: 1953-03-26
•
Granted: 1959-01-20
•
Expires: 1973-03-26
Abstract
No abstract record available.
Inventors
- 👤 Thummel Ludwig
- 👤 Aeberhardt Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:37
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/12; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/916; Y10S8/917; Y10S8/92; Y10S8/924; Y10S8/937
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A METHOD FOR DYEING A MIXTURE OF ANIMAL FIBERS
Claim 2
Independent Claim
9 words
A METHOD FOR DYEING A MIXTURE OF ANIMAL FIBERS
References Cited (Backward Citations)
US2615781A
Cited
US2040796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |