Patent US3302131A successfully refreshed from Google Patents.
US3302131A
Expired / Lapsed
US
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Transformer-coupled emitter-follower oscillator
Assignee: Individual
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Filing: 1966-05-09
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Granted: 1967-01-31
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Expires: 1986-05-09
Abstract
No abstract record available.
Inventors
- 👤 Lawrence A Pyatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:38
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/30; H03B5/32; H03B5/36; B; B06; B06B; B06B1/00; B06B1/02; B06B1/0207; B06B1/0223; B06B1/023; B06B2201/00; B06B2201/50; B06B2201/55
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A TRANSFORMER-COUPLED EMITTER-FEEDBACK TRANSISTOR OSCILLATOR CIRCUIT COMPRISING, IN COMBINATION: A TRANSISTOR HAVING BASE, EMITTER, AND COLLECTOR ELECTRODES; A STEP-UP TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, AND HAVING ONE END OF ITS PRIMARY WINDING COUPLED TO SAID EMITTER; POWER SUPPLY MEANS BIASING THE OTHER END OF SAID PRIMARY WINDING RELATIVE TO SAID COLLECTOR; A FREQUENCY-DETERMINING CRYSTAL COUPLED BETWEEN SAID COLLECTOR AND ONE END OF SAID SECONDARY WINDING, THE OTHER END OF SAID SECONDARY WINDING BEING COUPLED TO SAID BASE; AND MEANS FOR COUPLING OUTPUT ENERGY FROM SAID OSCILLATOR TO A LOAD.
Claim 2
Dependent Claim
93 words
A TRANSFORMER-COUPLED EMITTER-FEEDBACK TRANSISTOR OSCILLATOR CIRCUIT COMPRISING, IN COMBINATION: A TRANSISTOR HAVING BASE, EMITTER, AND COLLECTOR ELECTRODES; A STEP-UP TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, AND HAVING ONE END OF ITS PRIMARY WINDING COUPLED TO SAID EMITTER; POWER SUPPLY MEANS BIASING THE OTHER END OF SAID PRIMARY WINDING RELATIVE TO SAID COLLECTOR; A FREQUENCY-DETERMINING CRYSTAL COUPLED BETWEEN SAID COLLECTOR AND ONE END OF SAID SECONDARY WINDING, THE OTHER END OF SAID SECONDARY WINDING BEING COUPLED TO SAID BASE; AND MEANS FOR COUPLING OUTPUT ENERGY FROM SAID OSCILLATOR TO A LOAD.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |