Patent US2489566A successfully refreshed from Google Patents.
US2776898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic dielectric with high dielectric constant and process of making the same
Assignee: Thales SA
•
Filing: 1953-06-17
•
Granted: 1957-01-08
•
Expires: 1973-06-17
Abstract
No abstract record available.
Inventors
- 👤 Day Jean
- 👤 Calis Micheline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:11
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; 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
22 words
PROCESS OF MANUFACTURING A CERAMIC DIELECTRIC PRODUCT BY BAKING BETWEEN 1200* AND 1400*C. A MIXTURE CORRESPONDING TO THE FOLLOWING COMPONENTS BY WEIGHT:
Claim 2
Dependent Claim
22 words
PROCESS OF MANUFACTURING A CERAMIC DIELECTRIC PRODUCT BY BAKING BETWEEN 1200* AND 1400*C. A MIXTURE CORRESPONDING TO THE FOLLOWING COMPONENTS BY WEIGHT:
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) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |