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US3715701A
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Non-linear resistance element
Assignee: US Philips Corp
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Filing: 1971-02-19
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Granted: 1973-02-06
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Expires: 1991-02-19
Abstract
Abstract A varistor whose ceramic body contains bismuth oxide and antimony oxide containing semiconducting titanium oxide having a relatively low C-value and a low Beta value.
Inventors
- 👤 J Yperman
- 👤 J Rapaille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:35
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; H; H01; H01C; H01C7/00; H01C7/10; H01C7/105; H01C7/108; H01C7/115
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A non-linear resistance element whose ceramic resistance body provided with electrodes is a ceramIc body mainly consisting of semiconducting titanium oxide, wherein the ceramic body contains per mol of titanium oxide 0.005-0.1 mol of bismuth oxide and 0.001-0.05 mol of antimony oxide.
Claim 2
Dependent Claim
42 words
A non-linear resistance element whose ceramic resistance body provided with electrodes is a ceramIc body mainly consisting of semiconducting titanium oxide, wherein the ceramic body contains per mol of titanium oxide 0.005-0.1 mol of bismuth oxide and 0.001-0.05 mol of antimony oxide.
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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |