US3589961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming a matrix
Assignee: Monsanto Co
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Filing: 1967-08-02
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Granted: 1971-06-29
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Expires: 1987-08-02
Abstract
Abstract THIS INVENTION RELATES TO THE METHOD OF FORMING AND THE RESULTANT MATRIX FROM WHICH PLASTIC PRINTING PLATES MAY BE FORMED. THE MATRIX COMPRISES A FOAM-METALLIC LAYER LAMINATE WHEREIN THE METALLIC FACE THEREOF HAS BEEN COMPRESSION MOLDED AND WHEREIN THE FOAM IS CAPABLE OF RECEIVING AND HOLDING A PERMANENT SET.
Inventors
- 👤 Reid G Fordyce
- 👤 David D Macphail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:05
CPC Classifications
B; B41; B41C; B41C3/00; Y; Y10; Y10S; Y10S428/00; Y10S428/908; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T156/1041; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24545; Y10T428/24595; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/24999
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |