US2932765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage regulation circuits
Assignee: Westinghouse Electric Corp
•
Filing: 1958-07-24
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Granted: 1960-04-12
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Expires: 1978-07-24
Abstract
No abstract record available.
Inventors
- 👤 Frank J Messina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:34
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/18; H04N3/185
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) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |