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US2989714A
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Electrical circuit element
Assignee: Arthur D Little Inc
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Filing: 1958-06-25
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Granted: 1961-06-20
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Expires: 1978-06-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward C Park
- 👤 Smallman Carl Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:29
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; H; H10; H10N; H10N60/00; H10N60/30; H10N60/35; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2189122A
Cited
US2599550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |