US2854592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage regulation circuit
Assignee: Hoffman Electronics Corp
•
Filing: 1953-04-27
•
Granted: 1958-09-30
•
Expires: 1973-04-27
Abstract
No abstract record available.
Inventors
- 👤 Linus C Ruth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:29
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/18; H04N3/185; H04N3/1853
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2435961A
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US2535651A
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US2459638A
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US2644917A
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US2565621A
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US2555449A
Cited
US2700747A
Cited
US2801379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |