US3582458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyimide compositions and metallic articles coated therewith
Assignee: 3M Co
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Filing: 1968-11-12
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Granted: 1971-06-01
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Expires: 1988-11-12
Abstract
Abstract POLYMER-METAL LAMINATE COMPOSITES HAVING IMPROVED ADHESION BETWEEN METALLIC AND POLYMER LAMINAE, THE POLYMER CONSISTING ESSENTIALLY OF A MIXTURE OF A POLYIMIDE AND A POLYMIDE CONTAINING AMIDE GROUPS ALONG THE BACKBONE OF THE POLYMER CHAIN; AND COMPOSITIONS ADAPTED TO MAKING SUCH LAMINATES, CONTAINING THE SAID POLYMER MIXTURE IN SOLUTION IN A SUITABLE SOLVENT.
Inventors
- 👤 James R Haller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:03
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/24; B05D7/26; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31623; Y10T428/31678; Y10T428/31681; Y10T442/00; Y10T442/30; Y10T442/3382
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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |