Patent US3704110A successfully refreshed from Google Patents.
US3704110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically conductive surface
Assignee: CARL J HUDECEK
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Filing: 1971-05-13
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Granted: 1972-11-28
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Expires: 1991-05-13
Abstract
Abstract A GALSS SUBSTRATE HAVING A COMPOSITION CONSISTING ESSENTIALLY OF 50-94 MOLE PERCENT SIO2, 1.5-35 MOLE PERCENT CU2O, 0.5-30 MOLE PERCENT AL2O3,O-6 MOLE PERCENT FE2O3, 0 TO 6 MOLE PERCENT ALF3, 0-6 MOLE PERCENT NIO, 0-6 MOLE PERCENT CO0 AND 0-11 MOLE PERCENT TIO2 AND HAVING AN EXPOSED ELECTRICALLY CONDUCTIVE SURFACE OF METALLIC COPPER DEVELOPED FROM THE CU2O CONSTITUENT IN SITU OF SAID GLASS SUBSTRATE BY EXPOSURE OF SAID GLASS SUBSTRATE AT ELEVATED TEMPERATURES TO SUCCESSIVE OXIDIZING AND REDUCING CONDITIONS.
Inventors
- 👤 John B Finn
- 👤 Carl J Hudecek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:12
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/105; C; C03; C03C; C03C23/00; C03C3/00; C03C3/04; C03C3/076; C03C3/083; C03C3/11; C03C3/112; H01; H01B; H01B1/00; H05K1/00; H05K1/02; H05K1/03; H05K1/0306
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |