US2956909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing a conductive layer on heat sensitive dielectric material
Assignee: Sprague Electric Co
•
Filing: 1956-06-11
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Granted: 1960-10-18
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Expires: 1976-06-11
Abstract
No abstract record available.
Inventors
- 👤 Robinson Preston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:19
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/14; H05K3/146; C; C23; C23C; C23C16/00; C23C16/06; C23C16/16; H01; H01B; H01B1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1709781A
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US2183302A
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US2344138A
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US2441960A
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US2634330A
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US2698812A
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US2637777A
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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) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |