Patent US1824577A successfully refreshed from Google Patents.
US1824577A
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Electrical translating apparatus
Assignee: Hitachi Rail STS USA Inc
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Filing: 1930-02-07
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Granted: 1931-09-22
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Expires: 1950-02-07
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Sorensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:10
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/02; G11C19/04; H; H01; H01F; H01F29/00; H01F29/14; H03; H03F; H03F9/00; H03F9/02; H03K; H03K23/00; H03K23/76; H03K3/00; H03K3/02; H03K3/45; H03K3/51
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) | 1934-09-21 | 1935-03-23 | 1935-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-09-21 | 1939-03-23 | 1939-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-09-21 | 1943-03-23 | 1943-09-22 | $7700.00 | Window Closed / Lapsed |