US3756827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
L compounds and selected sensitizerss photopolymerizable compositions containing cyclic cis-alpha-dicarbony
Assignee: EIDP Inc
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Filing: 1972-01-25
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Granted: 1973-09-04
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Expires: 1992-01-25
Abstract
Abstract PHOTOPOLYMERIZABLE COMPOSITIONS COMPRISINGL AN ETHYLENICALLY UNSATURATED MONOMER AND AN INITIATING COMBINATION OF CYCLIC CIR-A-DICARBONYL COMPOUND AND CERTAIN RADIATION-ABSORBING SENSITIZER ARE DISCLOSED. COMPOSITIONS OF THE INVENTION HAVE IMPROVED PHOTOSEED AND MAY BE CHOSEN TO PROVIDE A WIDE RANGE OF SPECTRAL SENSITIVITY.
Inventors
- 👤 Lin Chang C Teh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:39
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04; C07D241/00; C07D241/02; C07D241/06; C07D241/08; G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/112; Y10S430/114; Y10S430/116; Y10S430/12; Y10S430/124; Y10S430/125; Y10S430/127
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |