US3682808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerizable compositions containing oxyphosphoranes
Assignee: BASF SE
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Filing: 1971-03-10
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Granted: 1972-08-08
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Expires: 1991-03-10
Abstract
Abstract PHOTOPOLYMERIZABLE COMPOSITIONS CONTAINING PHOROPOLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMERIC COMPOUNDS, A POLYMER AS BINDER AND ALSO OZYPHOSPHORANES. THE ADDITION OF OXYPHOSPHORANES CONSIDERABLY IMPROVES THE PHOTOSENSITIVITY OF THE PHOTOPOLYMERIZABLE COMPOSITIONS AND THE CONSTANCY OF SAID SENSITIVITY EVEN WHEN THEY ARE STORED FOR PROLONGED PERIODS.
Inventors
- 👤 Carl Heinrich Krauch
- 👤 Horst Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:09
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/029
Claims Analysis
Total Claims: 0
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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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |