US3531797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for improving the differential linearity of analog-to-digital converters
Assignee: LABEN LAB ELETTRONICI E NUCLEA
•
Filing: 1966-02-23
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Granted: 1970-09-29
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Expires: 1986-02-23
Abstract
No abstract record available.
Inventors
- 👤 Umberto Pellegrini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:24
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/10; H03M1/1009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2836356A
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US2974315A
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US3105231A
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US3146343A
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US3127601A
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US3311910A
Cited
US3164826A
Cited
US3241135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |