US2071452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low dielectric loss ceramic product and method of making
Assignee: Individual
•
Filing: 1935-08-28
•
Granted: 1937-02-23
•
Expires: 1955-08-28
Abstract
No abstract record available.
Inventors
- 👤 Bloch Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:43
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/50; C04B33/00; C04B33/02; C04B35/01; C04B35/46; C04B35/48; C04B35/51; Y; Y10; Y10S; Y10S106/00; Y10S106/04
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) | 1940-02-23 | 1940-08-24 | 1941-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-23 | 1944-08-24 | 1945-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-23 | 1948-08-24 | 1949-02-23 | $7700.00 | Window Closed / Lapsed |