US2842710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device and cathode-ray tubes for stabilising high voltages
Assignee: US Philips Corp
•
Filing: 1954-12-09
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Granted: 1958-07-08
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Expires: 1974-12-09
Abstract
No abstract record available.
Inventors
- 👤 Meer Simon Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:16
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/52; H; H01; H01J; H01J31/00; H01J31/02; H01J31/04; H01J37/00; H01J37/02; H01J37/24; H01J37/241
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2161466A
Cited
US2213076A
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US2453647A
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US2442848A
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US2383758A
Cited
US2563197A
Cited
US2615128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |