Patent US2687492A successfully refreshed from Google Patents.
US2687492A
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US
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Signal storage device
Assignee: Rauland Borg Corp
•
Filing: 1949-06-16
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Granted: 1954-08-24
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Expires: 1969-06-16
Abstract
No abstract record available.
Inventors
- 👤 Szegho Constantin Stephen
- 👤 William O Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:07
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/2806; H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/395; H01J31/00; H01J31/08; H01J31/58; H01J31/60; H01J31/62; H01J31/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2245364A
Cited
US2237681A
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US2190020A
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US2281280A
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US2454652A
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US2481458A
Cited
US2452619A
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US2547638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |