Patent US2384831A successfully refreshed from Google Patents.
US2384831A
Expired / Lapsed
US
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Voltage multiplier
Assignee: ELECTRONIC LAB Inc
•
Filing: 1943-05-28
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Granted: 1945-09-18
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Expires: 1963-05-28
Abstract
No abstract record available.
Inventors
- 👤 William W Garstang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:31
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/16; H02M3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-09-17 | 1949-03-19 | 1949-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-09-17 | 1953-03-19 | 1953-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-09-17 | 1957-03-19 | 1957-09-18 | $7700.00 | Window Closed / Lapsed |