US3191108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical capacitor and method of making the same
Assignee: CTS Corp
•
Filing: 1962-10-03
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Granted: 1965-06-22
•
Expires: 1982-10-03
Abstract
No abstract record available.
Inventors
- 👤 Otis F Boykin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:54
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/022; H01G9/025; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/12; H01G4/1209; H01G4/1218; H01G4/1254; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
114 words
THE METHOD OF MAKING AN ELECTRICAL CAPACITOR COMPRISING: THE STEPS OF FIRING A BODY OF TANTALUM HAVING PARALLEL ENDS IN AN OXIDIZING ATMOSPHERE FOR FROM 5 TO 30 MINUTES AT 700-900*C. TO OXIDIZE THE OUTER LAYER OF THE BODY; IMPREGNATING THE OUTER PORTION OF THE OXIDE LAYER WITH A LIQUID LEAD RESINATE; REFIRING THE BODY AT 700-900*C. FOR FROM 5 TO 10 MINUTES TO RECOMPOSE THE RESINATE; AND FORM A DIELECTRIC LAYER ON THE BODY OF TANTALUM COMPRISING AN INNER LAYER OF THE OXIDE OF TANTALUM AND AN OUTER LAYER OF LEAD TANTALATE, AND ATTACHING AN ELECTRODE TO THE PORTION OF THE DIELECTRIC LAYER COVERING ONE OF THE ENDS TO PRODUCE THE ELECTRICAL CAPACITOR.
Claim 2
Independent Claim
114 words
THE METHOD OF MAKING AN ELECTRICAL CAPACITOR COMPRISING: THE STEPS OF FIRING A BODY OF TANTALUM HAVING PARALLEL ENDS IN AN OXIDIZING ATMOSPHERE FOR FROM 5 TO 30 MINUTES AT 700-900*C. TO OXIDIZE THE OUTER LAYER OF THE BODY; IMPREGNATING THE OUTER PORTION OF THE OXIDE LAYER WITH A LIQUID LEAD RESINATE; REFIRING THE BODY AT 700-900*C. FOR FROM 5 TO 10 MINUTES TO RECOMPOSE THE RESINATE; AND FORM A DIELECTRIC LAYER ON THE BODY OF TANTALUM COMPRISING AN INNER LAYER OF THE OXIDE OF TANTALUM AND AN OUTER LAYER OF LEAD TANTALATE, AND ATTACHING AN ELECTRODE TO THE PORTION OF THE DIELECTRIC LAYER COVERING ONE OF THE ENDS TO PRODUCE THE ELECTRICAL CAPACITOR.
Claim 3
Dependent Claim
43 words
AN ELECTRICAL CAPACITOR COMPRISING A BODY OF TANTALUM, A DIELECTRIC FILM BONDED TO THE BODY OF TANTALUM COMPRISING AN OXIDE OF TANTALUM AND LEAD TANTALATE, THE LEAD TANTALATE BEING BONDED TO THE OXIDE OF TANTALUM, AND AN ELECTRODE SECURED TO THE DIELECTRIC FILM.
Claim 4
Dependent Claim
43 words
AN ELECTRICAL CAPACITOR COMPRISING A BODY OF TANTALUM, A DIELECTRIC FILM BONDED TO THE BODY OF TANTALUM COMPRISING AN OXIDE OF TANTALUM AND LEAD TANTALATE, THE LEAD TANTALATE BEING BONDED TO THE OXIDE OF TANTALUM, AND AN ELECTRODE SECURED TO THE DIELECTRIC FILM.
References Cited (Backward Citations)
US603722A
Cited
US3093883A
Cited
US1900018A
Cited
US1947112A
Cited
US2299228A
Cited
US2369327A
Cited
US2871428A
Cited
USRE24191E
Cited
US3066247A
Cited
US2972180A
Cited
US2930951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |