US3825430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive composition and method
Assignee: 3M Co
•
Filing: 1972-02-09
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Granted: 1974-07-23
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Expires: 1992-02-09
Abstract
Abstract LIGHT-SENSITIVE COMPOSITIONS ARE PROVIDED WHEREIN A CONTINUOUS PHASE COMPRISES A LIGHT-SENSITIVE ORGANIC MATERIAL WHILE A DISCONTINUOUS PHASE COMPRISES FINELY DIVIDED, RUBBER, ELASTOMERIC, ORGANIC COMPOUND. THE COMPOSITIONS CAN BE CURED TO AN INSOLUBLE, HEAT-RESISTANT, FLEXIBLE STATE. A METHOD FOR COVERING OR PROTECTING PRINTED CIRCUITRY USING SUCH COMPOSITIONS IS ALSO PROVIDED.
Inventors
- 👤 K Kurka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:24
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/28; H05K3/285; H05K3/287; G; G03; G03F; G03F7/00; G03F7/004; G03F7/0045; G03F7/022; G03F7/023; G03F7/0233; G03F7/027; G03F7/032; G03F7/038; G03F7/0388; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/114; Y10S430/117; Y10S430/128
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |