Patent US2996669A successfully refreshed from Google Patents.
US2996669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital voltmeter
Assignee: Cohu Electronics Inc
•
Filing: 1958-03-24
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Granted: 1961-08-15
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Expires: 1978-03-24
Abstract
No abstract record available.
Inventors
- 👤 Harry C Morgan
- 👤 Goudey Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:09
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/25; G01R19/255; H; H03; H03M; H03M1/00; H03M1/06; H03M1/0617; H03M1/0634; H03M1/0643; H03M1/0646
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |