Patent US3284635A successfully refreshed from Google Patents.
US3284635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parametric electronic device
Assignee: Unisys Corp
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Filing: 1962-11-30
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Granted: 1966-11-08
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Jr John Presper Eckert
- 👤 Brown Albert
- 👤 Leonard R Hulls
- 👤 Robert A Brinker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:55
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/45; H03K3/47; G; G11; G11C; G11C11/00; G11C11/19; G11C11/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
IN COMBINATION, A MAGNETICALLY SATURABLE ELEMENT HAVING SATURATING MEANS AND AN OUTPUT WINDING; A BIAS SOURCE COUPLED TO SAID MEANS; A PUMP FREQUENCY SOURCE HAVING A FREQUENCY F COUPLED TO SAID MEANS; A CAPACITOR COUPLED TO SAID OUTPUT WINDING FORMING A CIRCUIT RESONANT AT SAID FREQUENCY F; AND A SIGNAL SOURCE HAVING SAID FREQUENCY F COUPLED TO SAID CIRCUIT.
Claim 2
Dependent Claim
59 words
IN COMBINATION, A MAGNETICALLY SATURABLE ELEMENT HAVING SATURATING MEANS AND AN OUTPUT WINDING; A BIAS SOURCE COUPLED TO SAID MEANS; A PUMP FREQUENCY SOURCE HAVING A FREQUENCY F COUPLED TO SAID MEANS; A CAPACITOR COUPLED TO SAID OUTPUT WINDING FORMING A CIRCUIT RESONANT AT SAID FREQUENCY F; AND A SIGNAL SOURCE HAVING SAID FREQUENCY F COUPLED TO SAID CIRCUIT.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |