Patent US4825708A successfully refreshed from Google Patents.
Patent US3490927A successfully refreshed from Google Patents.
US3490927A
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US
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Nb2o5 and ta2o5 doped bat1o3 ceramic body and process therefor
Assignee: Sprague Electric Co
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Filing: 1966-08-01
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Granted: 1970-01-20
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Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 Manfred Kahn
- 👤 Maggio P Pechini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:22
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/62605; C04B35/62625; C04B35/6264; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4682; C04B35/628; C04B35/62802; C04B35/62805; C04B35/62818; C04B35/62886; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/32; C04B2235/3231; C04B2235/3232; C04B2235/3234; C04B2235/3236; C04B2235/3251; C04B2235/44; C04B2235/441; C04B2235/50; C04B2235/54; C04B2235/5418; C04B2235/5436; C04B2235/70; C04B2235/74; C04B2235/78; C04B2235/786
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2742370A
Cited
US2780558A
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GB755860A
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US3080239A
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US3146119A
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US3244639A
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US3274467A
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US3330697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |