US2650830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic memory device
Assignee: Individual
•
Filing: 1949-05-19
•
Granted: 1953-09-01
•
Expires: 1969-05-19
Abstract
No abstract record available.
Inventors
- 👤 John T Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:31
CPC Classifications
G; G06; G06K; G06K17/00; Y; Y10; Y10S; Y10S221/00; Y10S221/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1924713A
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US2075802A
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US2080100A
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US2030248A
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US2178706A
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US2175142A
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US2452743A
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US2416445A
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US2468198A
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US2514578A
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US2528161A
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US2488482A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |