US2930005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Network for frequency-modulated signals
Assignee: US Philips Corp
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Filing: 1957-06-18
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Granted: 1960-03-22
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Expires: 1977-06-18
Abstract
No abstract record available.
Inventors
- 👤 Tautner Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:58
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/30; H03H7/32; H03G; H03G11/00; H03G11/06
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) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |