Patent US3572139A successfully refreshed from Google Patents.
US3572139A
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US
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Load opposite resonant systems
Assignee: Individual
•
Filing: 1969-03-27
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Granted: 1971-03-23
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Expires: 1989-03-27
Abstract
Abstract A "LOAD OPPOSITE" RESONANT SYSTEM IS PROVIDED WITH SELECTED MASS AND SPRING COMPLIANCE, AN OSCILLATOR HAVING AN APPROPRIATE FREQUENCY AND POWER OUTPUT, AND AN ENGINE WITH CORRESPONDING FREQUENCY AND POWER OUTPUT SUCH THAT THE OPERATING FREQUENCY RANGE OF THE SYSTEM IS IN THE REGION OF, AND PREDOMINATELY WITHIN THE RANGE AND INFLUENCE OF ITS LOCKED-LOAD RESONANT FREQUENCY.
Inventors
- 👤 Howard L Shatto Jr
- 👤 Peter V H Serrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:08
CPC Classifications
B; B02; B02C; B02C1/00; B02C1/02; B02C19/00; B02C19/16; E; E02; E02F; E02F5/00; E02F5/02; E02F5/10; E02F5/102; E02F5/103; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18344; Y10T74/18544; Y10T74/18552
Claims Analysis
Total Claims: 0
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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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |