US3330697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing lead and alkaline earth titanates and niobates and coating method using the same to form a capacitor
Assignee: Sprague Electric Co
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Filing: 1963-08-26
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Granted: 1967-07-11
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Expires: 1983-08-26
Abstract
No abstract record available.
Inventors
- 👤 Maggio P Pechini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:19
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/12; C; C01; C01G; C01G23/00; C01G23/003; C01G25/00; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4682; C04B35/622; C04B35/626; C04B35/62605; C04B35/62625; C04B35/6264; C04B35/62645; C04B35/6267; C23; C23C; C23C18/00; C23C18/02; C23C18/12; C23C18/1204; C23C18/1208; C23C18/1216; C23C18/1229; C23C18/1241; C01P; C01P2006/00; C01P2006/40; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/44; C04B2235/441; C04B2235/449; C04B2235/70; C04B2235/74; C04B2235/76; C04B2235/768
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
THE METHOD OF FORMING A CAPACITOR COMPRISING APPLYING TO THE SURFACE OF A METAL ELECTRODE A RESINOUS COATING PREPARED BY THE PROCESS COMPRISING DISSOLVING AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF THE HYDRATED OXIDE, ALKOXIDE, AND ALPHA-HYDROXYCARBOXYLATE OF TITANIUM, NIOBIUM AND ZICONIUM WITH CRITIC ACID IN AN EXCESS OF A POLYHYDROXY ALCOHOL WHICH IS A LIQUID BELOW 100*C., DISSOLVING THEREIN AT LEAST ONE BASIC METAL COMPOUND FROM THE GROUP CONSISTING OF THE OXIDE, HYDROXIDE, CARBONATE AND ALKOXIDE OF LEAD AND THE ALKALINE EARTH METALS; EVAPORATING THE EXCESS ALCOHOL FROM THE COATED METAL ELECTRODE; CALCINING THE COATED ELECTRODE TO YIELD A DIELECTRIC LAYER THEREON AND APPLYING THERETO A COUNTERELECTRODE.
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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |