US2402515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High dielectric material and method of making same
Assignee: Tam Ceramics LLC
•
Filing: 1943-06-11
•
Granted: 1946-06-18
•
Expires: 1963-06-11
Abstract
No abstract record available.
Inventors
- 👤 Wainer Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:55
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-06-17 | 1949-12-17 | 1950-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-06-17 | 1953-12-17 | 1954-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-06-17 | 1957-12-17 | 1958-06-18 | $7700.00 | Window Closed / Lapsed |