US2789061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barium titanate ceramic dielectrics
Assignee: Primerica Inc
•
Filing: 1953-07-31
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Granted: 1957-04-16
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Expires: 1973-07-31
Abstract
No abstract record available.
Inventors
- 👤 William W Coffeen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:22
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4682
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A CERAMIC DIELECTRIC BODY CONSISTING OF 99 TO 85 MOLE PERCENT BARIUM TITANATE AND 1 TO 15 MOLE PERCENT NICKEL STANNATE.
Claim 2
Dependent Claim
21 words
A CERAMIC DIELECTRIC BODY CONSISTING OF 99 TO 85 MOLE PERCENT BARIUM TITANATE AND 1 TO 15 MOLE PERCENT NICKEL STANNATE.
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) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |