US2851632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit for producing sawtooth currents in the vertical deflection coils of television receivers
Assignee: US Philips Corp
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Filing: 1955-03-17
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Granted: 1958-09-09
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Expires: 1975-03-17
Abstract
No abstract record available.
Inventors
- 👤 Janssen Peter Johanne Hubertus
- 👤 Smeulers Wouter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:52
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/10; H03K4/26; H03K4/39; H03K4/43
Claims Analysis
Total Claims: 0
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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) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |