Patent US3231799A successfully refreshed from Google Patents.
US3231799A
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Modified barium titanate ceramic materials and capacitor
Assignee: Sprague Electric Co
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Filing: 1962-09-12
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Granted: 1966-01-25
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Expires: 1982-09-12
Abstract
No abstract record available.
Inventors
- 👤 Thomas I Prokopowicz
- 👤 Harold I Geller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:51
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/12; H01G4/1209; H01G4/1218; H01G4/1227; C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4682
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
99 words
A DIELECTRIC CERAMIC COMPOSITION CONSISTING ESSENTIALLY OF A FIRED COMBINATION OF A MAJOR PROPORTION OF BARIUM TITANATE AND FROM 1 TO 8 WEIGHT PERCENT OF A MEMBER OF THE GROUP CONSISTING OF NB2O5 AND FE2O3; NB2O5 AND LINBO3; LINBO3; TA2O5 AND FE2O3; TA2O5 AND LITAO3; AND LITAO3 WHEREIN THE MOLE RATIO OF NIOBIUM OXIDE AND TANTALUM OXIDE TO IRON OXIDE IS FROM 2.5:1 TO 25:1 AND THE MOLE RATION OF NIOBIUM OXIDE AND TANTALUM OXIDE TO LITHIUM OXIDE IS FROM 1:1 TO 10:1, SAID COMPOSITION HAVING BEEN FIRED AT A TEMPERATURE BELOW THE VOLATILIZATION TEMPERATURE OF THE CONSTITUENT OXIDES.
Claim 2
Dependent Claim
99 words
A DIELECTRIC CERAMIC COMPOSITION CONSISTING ESSENTIALLY OF A FIRED COMBINATION OF A MAJOR PROPORTION OF BARIUM TITANATE AND FROM 1 TO 8 WEIGHT PERCENT OF A MEMBER OF THE GROUP CONSISTING OF NB2O5 AND FE2O3; NB2O5 AND LINBO3; LINBO3; TA2O5 AND FE2O3; TA2O5 AND LITAO3; AND LITAO3 WHEREIN THE MOLE RATIO OF NIOBIUM OXIDE AND TANTALUM OXIDE TO IRON OXIDE IS FROM 2.5:1 TO 25:1 AND THE MOLE RATION OF NIOBIUM OXIDE AND TANTALUM OXIDE TO LITHIUM OXIDE IS FROM 1:1 TO 10:1, SAID COMPOSITION HAVING BEEN FIRED AT A TEMPERATURE BELOW THE VOLATILIZATION TEMPERATURE OF THE CONSTITUENT OXIDES.
Claim 3
Dependent Claim
15 words
AN ELECTRICAL CAPICATOR COMPRISING, THE FIRED COMPOSITION OF CLAIM 1 HAVING COUNTER ELECTRODES AFFIXED THERETO.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |