US3832187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single-phase film-forming photocross-linkable systems
Assignee: Siemens AG
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Filing: 1972-06-20
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Granted: 1974-08-27
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Expires: 1992-06-20
Abstract
Abstract A SINGLE-PHASE, SOLID FILM-FORMING PHOTO-CROSS-LINKABLE RESINOUS SYSTEM COMPRISED OF A COMPONENT CONTAINING ALLY-ESTER GROUPS AND A COMPONENT CONTAINING ONE OR SERVERAL N-MALEIC IMIDE GROUPS WITH A RATIO OF THE ALLYL DOUBLE BOND EQUIVALENT TO THE MALEIC IMIDE DOUBLE BOND EQUIBALENT EQUAL TO OR GREATHER THAN 1. THE RESINOUS SYSTEMS ARE EXPECIALLY USEFUL AS COMPOSITIONS FOR USE IN PHOTOPRINTING APPLICATIONS, FOR EXAMPLE, AS IN PRODUCTION OF PRINTED CIRCUITS.
Inventors
- 👤 W Kleeberg
- 👤 R Rubner
- 👤 E Kuehn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:28
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; G03F7/038; G03F7/0388; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/11; Y10S430/114; Y10S430/12
Claims Analysis
Total Claims: 0
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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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |