US2055706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making ceramic products
Assignee: CHICAGO DISTR ELECTRIC GENERAT
•
Filing: 1932-06-06
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Granted: 1936-09-29
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Expires: 1952-06-06
Abstract
No abstract record available.
Inventors
- 👤 Charles F Ramseyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:35
CPC Classifications
C; C04; C04B; C04B18/00; C04B18/04; C04B18/06; C04B18/08; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91; Y10; Y10S; Y10S106/00; Y10S106/04
Claims Analysis
Total Claims: 0
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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) | 1939-09-29 | 1940-03-30 | 1940-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-29 | 1944-03-30 | 1944-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-29 | 1948-03-30 | 1948-09-29 | $7700.00 | Window Closed / Lapsed |