US3208007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitive network for crystal compensation
Assignee: Individual
•
Filing: 1961-12-05
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Granted: 1965-09-21
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Expires: 1981-12-05
Abstract
No abstract record available.
Inventors
- 👤 Stanley S Schodowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:24
CPC Classifications
H; H03; H03L; H03L1/00; H03L1/02; H03L1/022; H03L1/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A FREQUENCY COMPENSATING NETWORK FOR USE IN COMBINATION WITH A CRYSTAL WHOSE FREQUENCY INCREASES AS THE TEMPERATURE RISES, UP TO A FIRST TEMPERATURE, DECREASES AS THE TEMPERATURE RISES BETWEEN SAID FIRST AND A SECOND TEMPERATURE, AND INCREASES AS THE TEMPERATURE RISES ABOVE SAID SECOND TEMPERATURE COMPRISING; A FIRST VARIABLE CAPACITY DIODE HAVING AN ANODE AND A CATHODE; A SECOND VARIABLE CAPACITY DIODE HAVING AN ANODE AND A CATHODE; A FIRST SOURCE OF BIAS VOLTAGE HAVING A POSITIVE TERMINAL AND A NEGATIVE TERMINAL; A SECOND SOURCE OF BIAS VOLTAGE HAVING A POSITIVE TERMINAL AND A NEGATIVE TERMINAL; THE NEGATIVE TERMINAL OF SAID FIRST SOURCE OF BIAS VOLTAGE CONNECTED TO THE ANODE OF SAID FIRST DIODE; THE POSITIVE TERMINAL OF SAID SECOND SOURCE OF BIAS VOLTAGE CONNECTIVE TO THE CATHODE OF SAID SECOND DIODE; A RESISTIVE BRIDGE HAVING ONE TEMPERATURE SENSITIVE ARM; A SOURCE OF VOLTAGE CONNECTED ACROSS ONE PAIR OF TERMINALS OF SAID BRIDGE; ONE TERMINAL OF THE OTHER PAIR OF TERMINALS OF SAID BRIDGE CONNECTED TO THE POSITIVE TERMINAL OF SAID FIRST SOURCE OF
Claim 2
Dependent Claim
174 words
A FREQUENCY COMPENSATING NETWORK FOR USE IN COMBINATION WITH A CRYSTAL WHOSE FREQUENCY INCREASES AS THE TEMPERATURE RISES, UP TO A FIRST TEMPERATURE, DECREASES AS THE TEMPERATURE RISES BETWEEN SAID FIRST AND A SECOND TEMPERATURE, AND INCREASES AS THE TEMPERATURE RISES ABOVE SAID SECOND TEMPERATURE COMPRISING; A FIRST VARIABLE CAPACITY DIODE HAVING AN ANODE AND A CATHODE; A SECOND VARIABLE CAPACITY DIODE HAVING AN ANODE AND A CATHODE; A FIRST SOURCE OF BIAS VOLTAGE HAVING A POSITIVE TERMINAL AND A NEGATIVE TERMINAL; A SECOND SOURCE OF BIAS VOLTAGE HAVING A POSITIVE TERMINAL AND A NEGATIVE TERMINAL; THE NEGATIVE TERMINAL OF SAID FIRST SOURCE OF BIAS VOLTAGE CONNECTED TO THE ANODE OF SAID FIRST DIODE; THE POSITIVE TERMINAL OF SAID SECOND SOURCE OF BIAS VOLTAGE CONNECTIVE TO THE CATHODE OF SAID SECOND DIODE; A RESISTIVE BRIDGE HAVING ONE TEMPERATURE SENSITIVE ARM; A SOURCE OF VOLTAGE CONNECTED ACROSS ONE PAIR OF TERMINALS OF SAID BRIDGE; ONE TERMINAL OF THE OTHER PAIR OF TERMINALS OF SAID BRIDGE CONNECTED TO THE POSITIVE TERMINAL OF SAID FIRST SOURCE OF
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |