US3732106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive copying compositions
Assignee: Kalle GmbH and Co KG
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Filing: 1971-10-27
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Granted: 1973-05-08
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Expires: 1991-10-27
Abstract
Abstract THIS INVENTION RELATES TO A LIGHT-SENSITIVE COPYING COM%POSITION WHICH COMPRISES AT LEAST ONE LIGHT-SENSITIVE UNSATURATED POLYMERIC SUBSTANCE WHICH IS SOLUBLE, OR AT LEAST SWELLABLE, IN AQUEOUS ALKALI, AND AT LEAST ONE PHOTOINITIATOR, THE POLYMERIC SUBSTANCE BEING A REACTION PRODUCT OF A POLYMERIC SUBSTANCE CONTAINING UNITS WITH ACTIVE HYDROGEN ATOMS, WITH AT LEAST ONE SULFONYL-ISOCYANATE OF THE GENERAL FORMULA R-SO2-NCO WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF AN ALIPHATIC OR CYCLOALIPHATIC GROUP WITH AT LEAST ONE OLEFINIC DOUBLE BOND.
Inventors
- 👤 H Steppan
- 👤 H Maar
- 👤 K Klupfel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:08
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/48; C08G18/00; C08G18/06; C08G18/70; C08G18/71; C08G18/715; C08G18/81; C08G18/8108; G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |