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US3045138A
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US
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Electric discharge tubes
Assignee: International Standard Electric Corp
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Filing: 1958-01-10
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Granted: 1962-07-17
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Expires: 1978-01-10
Abstract
No abstract record available.
Inventors
- 👤 Pohl Walter John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:34
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/28; H01J19/32; H01J19/36; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2770745A
Cited
FR1082673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |