US3222619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency shift keying generator
Assignee: Individual
•
Filing: 1963-10-29
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Granted: 1965-12-07
•
Expires: 1983-10-29
Abstract
No abstract record available.
Inventors
- 👤 Hekimian Norris Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:48
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/10; H04L27/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A FREQUENCY SHIFT KEYING GENERATOR WHICH COMPRISES A FIRST REACTIVE STORAGE ELEMENT HAVING AN OSCILLATORY VOLTAGE THEREACROSS SUBSTANTIALLY EQUAL IN VALUE TO THE OSCILLATORY VOLTAGE PRESENT ACROSS AT LEAST A SECOND REACTIVE STORAGE ELEMENT WITH WHICH IT FORMS A RESONANT CIRCUIT, AND SWITCHING MEANS HAVING TWO STATES AND CONNECTING THE FIRST AND SECOND ELEMENTS SUCH THAT WHEN THE SWITCHING MEANS ARE IN A FIRST STATE THE FIRST ELEMENT PRESENT A FIRST VALUE CAUSING OSCILLATIONS OF A FIRST FREQUENCY AND WHEN
Claim 2
Dependent Claim
80 words
A FREQUENCY SHIFT KEYING GENERATOR WHICH COMPRISES A FIRST REACTIVE STORAGE ELEMENT HAVING AN OSCILLATORY VOLTAGE THEREACROSS SUBSTANTIALLY EQUAL IN VALUE TO THE OSCILLATORY VOLTAGE PRESENT ACROSS AT LEAST A SECOND REACTIVE STORAGE ELEMENT WITH WHICH IT FORMS A RESONANT CIRCUIT, AND SWITCHING MEANS HAVING TWO STATES AND CONNECTING THE FIRST AND SECOND ELEMENTS SUCH THAT WHEN THE SWITCHING MEANS ARE IN A FIRST STATE THE FIRST ELEMENT PRESENT A FIRST VALUE CAUSING OSCILLATIONS OF A FIRST FREQUENCY AND WHEN
References Cited (Backward Citations)
US2469289A
Cited
US2930991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |