US3290595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical instrument
Assignee: Applied Physics Corp
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Filing: 1964-03-23
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Granted: 1966-12-06
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Expires: 1984-03-23
Abstract
No abstract record available.
Inventors
- 👤 Henry R F Novotny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:41
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/54; G; G01; G01R; G01R19/00; G01R19/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
IN A VIBRATORY CAPACITOR, A FIRST CAPACITOR ELECTRODE, A BODY MEMBER COMPOSED OF AN INORGANIC MONOCRYSTALLINE MATERIAL HAVING A RATIO (U/P) OF YOUNG''S MODULUS (Y) TO DENSITY (P) GREATER THAN ABOUT 5X1011 CM.2/SEC.2, SAID BODY MEMBER BEING PROVIDED WITH A METALLIC LAYER THEREON THAT ACTS AS A VIBRATING CAPACITOR ELECTRODE OF SAID CAPACITOR WHEN SAID BODY MEMBER IS VIBRATED.
Claim 2
Dependent Claim
36 words
IN A VIBRATORY CAPACITOR, A CIRCULAR PLATE HAVING AN ELECTRODE ON ONE SIDE THEREOF PROVIDING A VIBRATING ELECTRODE OF SAID CAPACITOR; AND MEANS ENGAGING SAID PLATE ONLY RADIALLY ABOUT ITS PERIPHERY FOR RIGIDLY SUPPORTING SAID PLATE.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |