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US2452603A
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Metal contact rectifier
Assignee: STC PLC
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Filing: 1944-04-08
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Granted: 1948-11-02
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Expires: 1964-04-08
Abstract
No abstract record available.
Inventors
- 👤 Saslaw Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:24
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/043; H10D48/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2137428A
Cited
US2139731A
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US2197497A
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US2328440A
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US2339613A
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US2386750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-02 | 1952-05-03 | 1952-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-02 | 1956-05-03 | 1956-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-02 | 1960-05-03 | 1960-11-02 | $7700.00 | Window Closed / Lapsed |