US2480418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifier with heater compensation
Assignee: RADIO TELEVISION INST Inc
•
Filing: 1944-05-04
•
Granted: 1949-08-30
•
Expires: 1964-05-04
Abstract
No abstract record available.
Inventors
- 👤 Lionel P Paradise
- 👤 Werner F Auerbacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:37
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2075966A
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US2245176A
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US2306991A
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GB526869A
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US2303357A
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US2392416A
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US2293528A
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US2326614A
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US2308997A
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US2329073A
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US2434939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |