Patent US3274518A successfully refreshed from Google Patents.
US3274518A
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Modulation system
Assignee: RCA Corp
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Filing: 1964-01-29
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Granted: 1966-09-20
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Expires: 1984-01-29
Abstract
No abstract record available.
Inventors
- 👤 Merle V Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:50
CPC Classifications
H; H03; H03C; H03C1/00; H03C1/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN AMPLITUDE MODULATION SYSTEM FOR A MODULATED CARRIER WAVE AND A MODULATION SIGNAL, COMPRISING, AN R-F AMPLIFIER, MEANS TO COUPLE SAID MODULATED CARRIER WAVE TO SAID R-F AMPLIFIER FOR AMPLIFICATION OF SAID MODULATED CARRIER WAVE, A MODULATION AMPLIFIER FOR AMPLIFYING SAID MODULATION SIGNAL, MEANS TO BIAS SAID MODULATION AMPLIFIER TO CUT-OFF BELOW A PREDETERMINED MODULATION SIGNAL AMPLITUDE, AND MEANS COUPLING SAID MODULATIN AMPLIFIER TO SAID R-F AMPLIFIER TO CONTROL THE AMPLIFICATION OF SAID R-F
Claim 2
Dependent Claim
74 words
AN AMPLITUDE MODULATION SYSTEM FOR A MODULATED CARRIER WAVE AND A MODULATION SIGNAL, COMPRISING, AN R-F AMPLIFIER, MEANS TO COUPLE SAID MODULATED CARRIER WAVE TO SAID R-F AMPLIFIER FOR AMPLIFICATION OF SAID MODULATED CARRIER WAVE, A MODULATION AMPLIFIER FOR AMPLIFYING SAID MODULATION SIGNAL, MEANS TO BIAS SAID MODULATION AMPLIFIER TO CUT-OFF BELOW A PREDETERMINED MODULATION SIGNAL AMPLITUDE, AND MEANS COUPLING SAID MODULATIN AMPLIFIER TO SAID R-F AMPLIFIER TO CONTROL THE AMPLIFICATION OF SAID R-F
References Cited (Backward Citations)
US2285164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |