US3566265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensated step ramp digital voltmeter
Assignee: TIME SYSTEMS CORP
•
Filing: 1968-11-18
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Granted: 1971-02-23
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Expires: 1988-11-18
Abstract
Abstract DIGITAL VOLTMETER WITH SELF-BIASING MEANS TO PROVIDE A HIGH INPUT IMPEDANCE AND SUBSTANTIALLY ELIMINATE LOADING OF THE INPUT SIGNAL.
Inventors
- 👤 Samuel Cameron Milton Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:18
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |