US3416063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized sine wave inverter
Assignee: RCA Corp
•
Filing: 1965-05-14
•
Granted: 1968-12-10
•
Expires: 1985-05-14
Abstract
No abstract record available.
Inventors
- 👤 Walter B Guggi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:54
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/525
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3085211A
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US3012181A
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US3009093A
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US3171077A
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US3120634A
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US3241032A
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US3222618A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |