US3417048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mass-coloration process for polyester resins
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1966-03-21
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Granted: 1968-12-17
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Expires: 1986-03-21
Abstract
No abstract record available.
Inventors
- 👤 Cooper Albert Charles
- 👤 White David Frederick
- 👤 Wilkinson Donald Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:21
CPC Classifications
C; C09; C09B; C09B25/00; C07; C07D; C07D221/00; C07D221/02; C07D221/04; C07D221/06; C07D221/10; C08; C08K; C08K5/00; C08K5/0008; C08K5/0041; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3437; C08L; C08L67/00; C08L67/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3103403A
Cited
US3242179A
Cited
US2955902A
Cited
US3104233A
Cited
US3228780A
Cited
US3036077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |