US3432467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesters of improved dyeability containing tertiary amines
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1965-05-17
•
Granted: 1969-03-11
•
Expires: 1985-05-17
Abstract
No abstract record available.
Inventors
- 👤 Trevor Davies
- 👤 Anthony Julian East
- 👤 Michael King Mccreath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:03
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/521; C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08L; C08L67/00; C08L67/02; D01; D01F; D01F1/00; D01F1/02; D01F1/10; D01F6/00; D01F6/58; D01F6/62; D01F6/78; D01F6/84; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3013914A
Cited
US3288759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |