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US3530559A
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Anode electrode fabrication
Assignee: GTE Sylvania Inc
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Filing: 1968-03-12
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Granted: 1970-09-29
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Expires: 1988-03-12
Abstract
No abstract record available.
Inventors
- 👤 Donald R Kerstetter
- 👤 Samuel J Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:22
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/28; H01J19/30; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1852020A
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US1866715A
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US2449961A
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US2473888A
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US3112185A
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US3143684A
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US3178308A
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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) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |