US3578458A
Expired / Lapsed
US
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Ionically cross-linked photopolymerized addition polymers
Assignee: Polaroid Corp
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Filing: 1966-10-05
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Granted: 1971-05-11
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Expires: 1986-10-05
Abstract
Abstract UNSATURATED MONOMERS CONTAINING IONIC SITES ARE PHOTOPOLYMERIZED AND, FURTHER, IONICALLY CROSS-LINKED THROUGH THESE SITES. EXAMPLES OF UNSATURATED MONOMERS CONTAINING IONIC SITES ARE ZWITTERIONS.
Inventors
- 👤 Lloyd D Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:52
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/117
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |