US3702812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerization catalyst comprising ferrocene and an active halogen-containing compound
Assignee: SCM Corp
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Filing: 1971-12-23
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Granted: 1972-11-14
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Expires: 1991-12-23
Abstract
Abstract PHOTOSENSITIVE CATALYST SYSTEMS COMPRISING A MINOR AMOUNT OF A FERROCENE COMPOUND IN COMBINATION WITH AN ACTIVATED HALOGENATED COMPOUND SELECTED FROM THE GROUP CONSISTING OF HALOSULFONYL COMPOUNDS, A,B-HALOSUBSTITUTED NAPHTHALENE, AN ALLYIC ACTIVATED HALOGENATED COMPOUND, AND AN ACYL ACTIVATED HALOGENATED COMPOUND HAVE BEEN FOUND TO ENHANCE THE POLYMERIZATION RATE OF VINYL MONOMERS POLYMERIZABLE WITH ULTRAVIOLET LIGHT.
Inventors
- 👤 Vincent D Mcginniss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:21
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/029; G03F7/0295; C; C08; C08F; C08F2/00; C08F2/46
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) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |