US3549367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerizable compositions containing triarylimidazolyl dimers and p-aminophenyl ketones
Assignee: EIDP Inc
•
Filing: 1968-05-24
•
Granted: 1970-12-22
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Expires: 1988-05-24
Abstract
No abstract record available.
Inventors
- 👤 Catherine Teh-Lin Chang
- 👤 Roxy Ni Fan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:26
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; C; C08; C08F; C08F2/00; C08F2/46; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/113; Y10S430/114; Y10S430/12; Y10S430/121
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3462268A
Cited
US3479185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |