US3111428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of anode bodies
Assignee: Sprague Electric Co
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Filing: 1961-01-16
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Granted: 1963-11-19
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Expires: 1981-01-16
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Fournier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:10
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/0029; H01G9/0036
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A PROCESS OF PRODUCING A UNIFORM SOLID ELECRROLYTE ON A SINATERED TANTALUM PELLET FOR COMBINATION IN A SOLID ELECTROLYTE CAPACITOR WHICH COMPRISES IMPREGNATING A FILM-FORMED POROUS BODY OF SINTERED TANALUM PARTICLES TO PENETRATE THE PORES OF THE BODY WITH A SOLUTION OF A SALT, THERMALLY DECOMPOSING THE SALT TO FORM AN OXIDE, REPEATING THE IMPREGNATION AND DECOMPOSITION A MULTIPLICITY OF TIMES TO SUBSTANTIALLY COMPLETELY FILL THE INTERSTICES BETWEEN THE PORES OF THE BODY WITH A SOLUTION OF A SALT, THERMALLY DECOMPOSING THE SALT TO FORM AN OXIDE, REPEATING THE IMPREGNATION AND DECOMPOSITION A MULTIPLICITY OF TIMES TO SUBSTANTIALLY COMPLETELY FILL THE INTERSTICES BETWEEN THE PARTICLES AND FORM A LAYER OF OXIDE OF INDETERMINATE THICKNESS AROUND SAID BODY, AND ABRADING THE OUTER SURFACE OF THE LAYER BY A RECIPROCATORY MOTION AGAINST AN ANNULAR SURFACE OF UNIFORM DIAMETER AND AN ANNULAR SURFACE OF A VARYING DIAMETER IN A CAVITY FORMED IN AN ABRASIVE MATERIAL.
Claim 2
Dependent Claim
152 words
A PROCESS OF PRODUCING A UNIFORM SOLID ELECRROLYTE ON A SINATERED TANTALUM PELLET FOR COMBINATION IN A SOLID ELECTROLYTE CAPACITOR WHICH COMPRISES IMPREGNATING A FILM-FORMED POROUS BODY OF SINTERED TANALUM PARTICLES TO PENETRATE THE PORES OF THE BODY WITH A SOLUTION OF A SALT, THERMALLY DECOMPOSING THE SALT TO FORM AN OXIDE, REPEATING THE IMPREGNATION AND DECOMPOSITION A MULTIPLICITY OF TIMES TO SUBSTANTIALLY COMPLETELY FILL THE INTERSTICES BETWEEN THE PORES OF THE BODY WITH A SOLUTION OF A SALT, THERMALLY DECOMPOSING THE SALT TO FORM AN OXIDE, REPEATING THE IMPREGNATION AND DECOMPOSITION A MULTIPLICITY OF TIMES TO SUBSTANTIALLY COMPLETELY FILL THE INTERSTICES BETWEEN THE PARTICLES AND FORM A LAYER OF OXIDE OF INDETERMINATE THICKNESS AROUND SAID BODY, AND ABRADING THE OUTER SURFACE OF THE LAYER BY A RECIPROCATORY MOTION AGAINST AN ANNULAR SURFACE OF UNIFORM DIAMETER AND AN ANNULAR SURFACE OF A VARYING DIAMETER IN A CAVITY FORMED IN AN ABRASIVE MATERIAL.
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) | 1966-11-18 | 1967-05-20 | 1967-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-18 | 1971-05-20 | 1971-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-18 | 1975-05-20 | 1975-11-19 | $7700.00 | Window Closed / Lapsed |