US2412925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of fused articles
Assignee: Stupakoff Ceramic & Manufacturing Co
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Filing: 1942-09-14
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Granted: 1946-12-17
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Expires: 1962-09-14
Abstract
No abstract record available.
Inventors
- 👤 Semon H Stupakoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:07
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/32; C04B33/323; C30; C30B; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C30B29/26; Y; Y10; Y10S; Y10S264/00; Y10S264/44; Y10S425/00; Y10S425/012
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) | 1949-12-16 | 1950-06-17 | 1950-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-12-16 | 1954-06-17 | 1954-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-12-16 | 1958-06-17 | 1958-12-17 | $7700.00 | Window Closed / Lapsed |