US3169233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage to frequency converter
Assignee: Individual
•
Filing: 1962-12-17
•
Granted: 1965-02-09
•
Expires: 1982-12-17
Abstract
No abstract record available.
Inventors
- 👤 Samuel A Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:38
CPC Classifications
H; H03; H03K; H03K7/00; H03K7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A VOLTAGE TO FREQUENCY CONVERTER COMPRISING: AN INDUCTIVE MEANS; MEANS FOR COUPLING A VOLTAGE INPUT SIGNAL TO SAID INDUCTIVE MEANS, FOR PRODUCING AN INDUCTIVE CURRENT DENOTING A CHARGING PERIOD; MEANS FOR PROVIDING CLOCK PULSES; MEANS FOR DEVELOPING A FIRST WAVEFORM PORTION DURING THE CHARGING PERIOD OF SAID INDUCTANCE, MEASURED OVER DISCRETE TIME INTERVALS DEFINED BY SAID CLOCK PULSES; MEANS FOR REVERSING THE INDUCTIVE CURRENT DENOTING A DISCHARGE PERIOD;
Claim 2
Dependent Claim
68 words
A VOLTAGE TO FREQUENCY CONVERTER COMPRISING: AN INDUCTIVE MEANS; MEANS FOR COUPLING A VOLTAGE INPUT SIGNAL TO SAID INDUCTIVE MEANS, FOR PRODUCING AN INDUCTIVE CURRENT DENOTING A CHARGING PERIOD; MEANS FOR PROVIDING CLOCK PULSES; MEANS FOR DEVELOPING A FIRST WAVEFORM PORTION DURING THE CHARGING PERIOD OF SAID INDUCTANCE, MEASURED OVER DISCRETE TIME INTERVALS DEFINED BY SAID CLOCK PULSES; MEANS FOR REVERSING THE INDUCTIVE CURRENT DENOTING A DISCHARGE PERIOD;
References Cited (Backward Citations)
US2897380A
Cited
US3075084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-09 | 1968-08-10 | 1969-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-09 | 1972-08-10 | 1973-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-09 | 1976-08-10 | 1977-02-09 | $7700.00 | Window Closed / Lapsed |