Patent US3093598A successfully refreshed from Google Patents.
US3093598A
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Electrically conductive glasses
Assignee: English Electric Co Ltd
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Filing: 1961-01-03
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Granted: 1963-06-11
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Expires: 1981-01-03
Abstract
No abstract record available.
Inventors
- 👤 Mcmillan Peter William
- 👤 Hodgson Brian Purdam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:20
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/41; H01J29/413; C; C03; C03C; C03C3/00; C03C3/04; C03C3/062; C03C3/076; C03C3/083; C03C3/085; C03C4/00; C03C4/14; H01B; H01B1/00; H01B1/06; H01B1/08; H01B3/00; H01B3/02; H01B3/08; H01B3/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR PRODUCING A GLASS ARTICLE WHICH IS ELECTRONICALLY CONDUCTIVE WHICH COMPRISES MAINTAINING GLASS HAVING THE MOLECULAR PERCENTAGE COMPOSITION, NEGLECTING IMPURITIES: SILICON, EXPRESSED AS SIO2, 35-56%; ALUMINUM, EXPRESSED AS AL2O3, 0-20%; MANGANESE, EXPRESSED AS MNO, 36-55%, THE MANGANESE BEING PREDOMINANTLY IN ITS MN+2 VALENCE STATE, AND SAID GLASS ALSO HAVING A SOFTENING POINT, MEASURED AS THE DILATOMERIC TURNOVER TEMPERATURE, IN THE RANGE 660-720*C., AT A TEMPERATURE WITHIN THE RANGE 550*C. TO 1,000*C. FOR A PERIOD OF BETWEEN THIRTY MINUTES AND APPROXIMATELY FOUR HOURS IN AN OXIDIZING ATMOSPHERE.
Claim 2
Dependent Claim
88 words
A PROCESS FOR PRODUCING A GLASS ARTICLE WHICH IS ELECTRONICALLY CONDUCTIVE WHICH COMPRISES MAINTAINING GLASS HAVING THE MOLECULAR PERCENTAGE COMPOSITION, NEGLECTING IMPURITIES: SILICON, EXPRESSED AS SIO2, 35-56%; ALUMINUM, EXPRESSED AS AL2O3, 0-20%; MANGANESE, EXPRESSED AS MNO, 36-55%, THE MANGANESE BEING PREDOMINANTLY IN ITS MN+2 VALENCE STATE, AND SAID GLASS ALSO HAVING A SOFTENING POINT, MEASURED AS THE DILATOMERIC TURNOVER TEMPERATURE, IN THE RANGE 660-720*C., AT A TEMPERATURE WITHIN THE RANGE 550*C. TO 1,000*C. FOR A PERIOD OF BETWEEN THIRTY MINUTES AND APPROXIMATELY FOUR HOURS IN AN OXIDIZING ATMOSPHERE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |