US3842018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxide varistor composition consisting of zno,sb2o3 and/or sb2o5,zro2,tio2 and/or geo2,and bi2o3
Assignee: Individual
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Filing: 1973-02-08
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Granted: 1974-10-15
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Expires: 1993-02-08
Abstract
Abstract 1. AN OXIDE VARISTOR COMPRISING A BASIC COMPOSITION (TOTALING 100 MOL PERCENT) CONSISTING OF 87 TO 12 MOL PERCENT OF ZNO, 1 TO 30 MOL PERCENT OF ANTIMONY OXIDE SELECTED FROM THE GROUP CONSISTING OF SB2O3, SB2O5 AND A MIXTURE THEREOF AND 12 TO 87 MOL PERCENT OF AT LEAST ONE METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF ZRO2, TIO2 AND GEO2, AND AN ADDITIVE CONSISTING OF OF 0.5 TO 10% BY WEIGHT OF BI2O3 BASED ON SAIC BASIC COMPOSITION.
Inventors
- 👤 N Ichinose
- 👤 Y Yokomizo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:51
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/10; H01C7/105; H01C7/108; H01C7/112
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
AN OXIDE VARISTOR COMPRISING A BASIC COMPOSITION (TOTALING 100 MOL PERCENT) CONSISTING OF 87 TO 12 MOL PERCENT OF ZNO, 1 TO 30 MOL PERCENT OF ANTIMONY OXIDE SELECTED FROM THE GROUP CONSISTING OF SB2O3, SB2O5 AND A MIXTURE THEREOF AND 12 TO 87 MOL PERCENT OF AT LEAST ONE METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF ZRO2, TIO2 AND GEO2, AND AN ADDITIVE CONSISTING OF OF 0.5 TO 10% BY WEIGHT OF BI2O3 BASED ON SAIC BASIC COMPOSITION.
Claim 2
Dependent Claim
80 words
AN OXIDE VARISTOR COMPRISING A BASIC COMPOSITION (TOTALING 100 MOL PERCENT) CONSISTING OF 87 TO 12 MOL PERCENT OF ZNO, 1 TO 30 MOL PERCENT OF ANTIMONY OXIDE SELECTED FROM THE GROUP CONSISTING OF SB2O3, SB2O5 AND A MIXTURE THEREOF AND 12 TO 87 MOL PERCENT OF AT LEAST ONE METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF ZRO2, TIO2 AND GEO2, AND AN ADDITIVE CONSISTING OF OF 0.5 TO 10% BY WEIGHT OF BI2O3 BASED ON SAIC BASIC COMPOSITION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |