US2798152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detector for either frequency modulation or amplitude modulation with noise reductionmeans
Assignee: US Philips Corp
•
Filing: 1954-02-05
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Granted: 1957-07-02
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Expires: 1974-02-05
Abstract
No abstract record available.
Inventors
- 👤 Janssen Peter Johanne Hubertus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:35
CPC Classifications
H; H03; H03G; H03G11/00; H03G11/04; H03D; H03D5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2250862A
Cited
US2351212A
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US2341937A
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US2413593A
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US2519890A
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US2561088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |