US1865213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric current rectifier
Assignee: RUBEN RECTIFIER Corp
•
Filing: 1924-12-10
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Granted: 1932-06-28
•
Expires: 1944-12-10
Abstract
No abstract record available.
Inventors
- 👤 Ruben Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:55
CPC Classifications
H; H10; H10W; H10W90/00; H10D; H10D48/00; H10D48/01; H10D48/07; H10D62/00; H10D62/80; H10P; H10P10/00; H10P95/00; H10P95/80; H10W72/00
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) | 1935-06-28 | 1935-12-28 | 1936-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-06-28 | 1939-12-28 | 1940-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-06-28 | 1943-12-28 | 1944-06-28 | $7700.00 | Window Closed / Lapsed |