Patent US2992929A successfully refreshed from Google Patents.
US2992929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic dielectric substances of high dielectric constant and low temperature coefficient
Assignee: Thales SA
•
Filing: 1958-01-21
•
Granted: 1961-07-18
•
Expires: 1978-01-21
Abstract
No abstract record available.
Inventors
- 👤 Clement Rene
- 👤 Tristan Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:52
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4682; C04B35/4684
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A DIELECTRIC CERAMIC COMPOSITION CONSISTING ESSENTIALLY OF 80 TO 99.5% OF BARIUM TITANATE AND 0.5 TO 20% OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF BI3NBTIO9, BABI2NB2O9, NABI5NB4O18, CABI2NB2O9, PBBI2NB2O9, CDBI2NB2O9, SRBI2NB2O9 AND KBI5NB4O18.
Claim 2
Dependent Claim
37 words
A DIELECTRIC CERAMIC COMPOSITION CONSISTING ESSENTIALLY OF 80 TO 99.5% OF BARIUM TITANATE AND 0.5 TO 20% OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF BI3NBTIO9, BABI2NB2O9, NABI5NB4O18, CABI2NB2O9, PBBI2NB2O9, CDBI2NB2O9, SRBI2NB2O9 AND KBI5NB4O18.
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) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |