US2841758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage stabilizing circuit arrangements
Assignee: Marconis Wireless Telegraph Co Ltd
•
Filing: 1954-04-19
•
Granted: 1958-07-01
•
Expires: 1974-04-19
Abstract
No abstract record available.
Inventors
- 👤 Wright Peter Maurice
- 👤 Brandon Percy Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:56
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2075966A
Cited
US2171614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |