US3487338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three terminal semiconductor device for converting amplitude modulated signals into frequency modulated signals
Assignee: RCA Corp
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Filing: 1966-09-21
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Granted: 1969-12-30
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Expires: 1986-09-21
Abstract
No abstract record available.
Inventors
- 👤 Arnold Matzelle
- 👤 Arthur Edward Hahn Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:33
CPC Classifications
H; H03; H03C; H03C7/00; H03C7/02; H03C7/025; H03C7/027; H03C1/00; H03C1/36; H03C3/00; H03C3/38; H10; H10N; H10N80/00; H10P; H10P95/00; H10W; H10W20/00; H10W20/40
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) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |