US2867797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog-to-digital converters
Assignee: MARCHANT RES Inc
•
Filing: 1954-03-09
•
Granted: 1959-01-06
•
Expires: 1974-03-09
Abstract
No abstract record available.
Inventors
- 👤 George B Greene
- 👤 Wahlstrom Gunnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:45
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2632058A
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US2660618A
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US2678254A
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US2590110A
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US2679644A
Cited
US2762564A
Cited
US2755459A
Cited
US2711499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |