Patent US2952761A successfully refreshed from Google Patents.
US2952761A
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Electrically conductive laminated structure and method of making same
Assignee: Chemelex Inc
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Filing: 1957-04-02
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Granted: 1960-09-13
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Expires: 1977-04-02
Abstract
No abstract record available.
Inventors
- 👤 Smith-Johannsen Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:36
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/22; H05B3/28; F; F24; F24D; F24D13/00; F24D13/02; H01; H01B; H01B1/00; H01B1/20; H01B1/24; H01B3/00; H01B3/002; H01B3/004; H01B3/18; H01B3/48; Y; Y02; Y02B; Y02B30/00; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49083; Y10T428/00; Y10T428/249921; Y10T428/249994; Y10T428/249999
Claims Analysis
Total Claims: 0
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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) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |