Patent US2880371A successfully refreshed from Google Patents.
US2880371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device comprising at least one glow discharge tube
Assignee: US Philips Corp
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Filing: 1953-08-25
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Granted: 1959-03-31
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Expires: 1973-08-25
Abstract
No abstract record available.
Inventors
- 👤 Tosswill Christopher Haly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:42
CPC Classifications
H; H03; H03K; H03K29/00; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J2893/00; H01J2893/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2556614A
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US2603765A
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US2524213A
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US2553585A
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US2575371A
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US2598677A
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US2641725A
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US2686273A
Cited
US2651740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |