Patent US2858425A successfully refreshed from Google Patents.
US2858425A
Expired / Lapsed
US
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Digital discriminator
Assignee: Laboratory For Electronics Inc
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Filing: 1952-11-08
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Granted: 1958-10-28
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Expires: 1972-11-08
Abstract
No abstract record available.
Inventors
- 👤 Bernard M Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:05
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/62; G01S13/585
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2176742A
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US2304134A
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US2441969A
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US2594535A
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US2530387A
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US2522139A
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US2677758A
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US2644133A
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US2561182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |