Patent US2442403A successfully refreshed from Google Patents.
US2442403A
Expired / Lapsed
US
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Electronic switching and computing device
Assignee: RCA Corp
•
Filing: 1942-09-23
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Granted: 1948-06-01
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Expires: 1962-09-23
Abstract
No abstract record available.
Inventors
- 👤 Leslie E Flory
- 👤 George A Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:09
CPC Classifications
H; H03; H03K; H03K23/00; H03K23/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB355705A
Cited
GB356111A
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US1932589A
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US2132654A
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US2113214A
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US2158285A
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US2272070A
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US2293177A
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US2310105A
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US2306386A
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US2332300A
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US2324314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-01 | 1951-12-01 | 1952-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-01 | 1955-12-01 | 1956-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-01 | 1959-12-01 | 1960-06-01 | $7700.00 | Window Closed / Lapsed |