Patent US2413785A successfully refreshed from Google Patents.
US2643192A
Expired / Lapsed
US
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Electrical insulator
Assignee: Hartford National Bank and Trust Co
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Filing: 1949-06-11
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Granted: 1953-06-23
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Expires: 1969-06-11
Abstract
No abstract record available.
Inventors
- 👤 Jonker Gerard Heinrich
- 👤 Schilperoord Pieter Bened Arie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:09
CPC Classifications
H; H03; H03G; H03G9/00; H03G9/02; H03G9/04; H03G9/06; H03G9/08; B; B60; B60T; B60T13/00; B60T13/10; B60T13/12; C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4682; H01; H01B; H01B1/00; H01B1/06; H01B1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A CERAMIC DIELECTRIC CONSISTING ESSENTIALLY OF A TERNARY COMPOSITION DEFINED WHOLLY WITHIN THE REGION OF THE PHASE DIAGRAM OF THE TERNARY SYSTEM X-Y-Z SHOWN IN FIG. 2 OF THE ACCOMPANYING DRAWING BOUNDED BY ANGULAR POINTS HAVING THE COMPOSITION 18X-82Z, 16X-19Y-65Z. 67Y-33Z, 18X-27Y-55Z, 27X-12Y-61Z AND 27X-73Z CALCULATED IN MOL.PER CENT, WHERE X INCLUDE BAO AND ONE OF THE OXIDES SELECTED FROM THE GROUP CONSISTING OF CAO, SRO, AND PBO AND LA2O3 IN AN AMOUNT NOT EXCEEDING ONE QUARTER OF THE BAO, Y INCLUDES ZNO AND NOT MORE THAN 5 MOL.PER CENT OF CDO, AND NOT MORE THAN 35 MOL.PER CENT OF BEO AND NOT MORE THAN 50 MOL.PER CENT MGO, AND Z INCLUDES TIO2 AND ONE OF THE OXIDES SELECTED FROM THE GROUP CONSISTING OF ZRO2, SNO2 AND SIO2 IN AN AMOUNT NOT EXCEEDING ONE QUARTER OF THE TIO2.
Claim 2
Dependent Claim
138 words
A CERAMIC DIELECTRIC CONSISTING ESSENTIALLY OF A TERNARY COMPOSITION DEFINED WHOLLY WITHIN THE REGION OF THE PHASE DIAGRAM OF THE TERNARY SYSTEM X-Y-Z SHOWN IN FIG. 2 OF THE ACCOMPANYING DRAWING BOUNDED BY ANGULAR POINTS HAVING THE COMPOSITION 18X-82Z, 16X-19Y-65Z. 67Y-33Z, 18X-27Y-55Z, 27X-12Y-61Z AND 27X-73Z CALCULATED IN MOL.PER CENT, WHERE X INCLUDE BAO AND ONE OF THE OXIDES SELECTED FROM THE GROUP CONSISTING OF CAO, SRO, AND PBO AND LA2O3 IN AN AMOUNT NOT EXCEEDING ONE QUARTER OF THE BAO, Y INCLUDES ZNO AND NOT MORE THAN 5 MOL.PER CENT OF CDO, AND NOT MORE THAN 35 MOL.PER CENT OF BEO AND NOT MORE THAN 50 MOL.PER CENT MGO, AND Z INCLUDES TIO2 AND ONE OF THE OXIDES SELECTED FROM THE GROUP CONSISTING OF ZRO2, SNO2 AND SIO2 IN AN AMOUNT NOT EXCEEDING ONE QUARTER OF THE TIO2.
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) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |