US3719610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low loss electrical conductive coating and bonding materials including magnetic particles for mixing
Assignee: United States Department of the Navy
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Filing: 1971-08-04
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Granted: 1973-03-06
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Expires: 1991-08-04
Abstract
Abstract A CONDUCTIVE COATING AND BONDING MATERIAL FOR SINGLE ELEMENT ELECTROSTRICTIVE TRANSDUCERS AND FOR THOSE FORMED AS A MOSAIC STACH, OR NON-LINEAR SERIATIM ASSEMBLY OF ELECTROSTRICTIVE SEGMENTS AND INCLUDING A MATRIX OF KNOWN TYPES OF ROOM TEMPERATURE CURING EPOXY RESIN HAVING UNIFORMLY DISPERSED THERETHROUGH, COPPER AND SILVER FLAKES AND NICKEL POWDER, THE NICKEL POWDER BEING PRESENT FOR MAGNETIC MIXING. THE TERM ELECTROSTRICTIVE IS USED IN THE GENERIC SENSE TO ENCOMPASS CERAMIC MATERIALS AND PIEZOELECTRIC NATURAL OR GROWN CRYSTALS.
Inventors
- 👤 W Prentice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:26
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/20; H01B1/22; H03; H03H; H03H3/00; H03H3/007; H03H3/02; H10; H10N; H10N30/00; H10N30/80; H10N30/87; H10N30/877; H10N30/878
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |