Patent US3712849A successfully refreshed from Google Patents.
US3712849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic laminate
Assignee: Individual
•
Filing: 1971-07-06
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Granted: 1973-01-23
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Expires: 1991-07-06
Abstract
Abstract A LAMINATED COMPOSITE SHEET COMPRISING AT LEAST TWO METAL LAYERS, SUCH SHEET BEING PRODUCED BY COATING A VERY THIN FOIL OF A VALUABLE METAL WITH AN ADHESIVE MEDIUM AND JOINING IT UNDER PRESSURE TO THE FACE OF A THICKER METAL SHEET WHICH, PRIOR TO SAID JOINING, HAS BEEN COVERED WITH A LAYER OF THERMOPLASTIC MATERIAL.
Inventors
- 👤 D Robbiati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:14
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/04; B32B15/08; B32B2311/00; B32B2311/24; B32B2311/30; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699
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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |