Patent US3236583A successfully refreshed from Google Patents.
US3236583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester dyeing with a dye solution containing polyalkylene oxide ether of phenols and a fatty acid ester of polyalkylene oxides
Assignee: Bayer AG
•
Filing: 1962-12-28
•
Granted: 1966-02-22
•
Expires: 1982-12-28
Abstract
No abstract record available.
Inventors
- 👤 Hees Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:16
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/54; D06P1/00; D06P1/44; D06P1/60; D06P1/613; D06P1/6131; D06P1/6135; D06P1/6136; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A PROCESS FOR DYEING POLYESTER MATERIAL WITH A DISPERSION DYESTUFF CONSISTING IN INSERTING THE MATERIAL INTO A DYEBATH CONTAINING (1) A LEVELLING AGENT OF THE FORMULA
Claim 2
Dependent Claim
26 words
A PROCESS FOR DYEING POLYESTER MATERIAL WITH A DISPERSION DYESTUFF CONSISTING IN INSERTING THE MATERIAL INTO A DYEBATH CONTAINING (1) A LEVELLING AGENT OF THE FORMULA
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 |