US3573908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic technique for the selective deposition of a ceramic substrate glaze
Assignee: AT&T Inc
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Filing: 1969-06-06
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Granted: 1971-04-06
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Expires: 1989-06-06
Abstract
Abstract A SELECTIVE GLAZE PATTERN LESS THAN 13 MICRONS IN THICKNESS IS OBTAINED BY PREPARING A MIXTURE OF A PHOTORESIST AND A MULTICOMPONENT OXIDE GLAZE FRIT, APPLYING THE RESULTANT MIXTURE TO AN ALUMINA SUBSTRATE AND EXPOSING DEVELOPING AND FIRING THE RESULTANT COATING.
Inventors
- 👤 Richard H Minetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:30
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C03; C03C; C03C4/00; C04B41/45; C04B41/4505; C04B41/50; C04B41/5022; H; H10; H10N; H10N97/00; H10W; H10W99/00
Claims Analysis
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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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |