Patent US1618288A successfully refreshed from Google Patents.
US1618288A
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Zirconium oxide silica composite and method of making same
Assignee: Tam Ceramics LLC
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Filing: 1925-11-06
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Granted: 1927-02-22
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Expires: 1945-11-06
Abstract
No abstract record available.
Inventors
- 👤 Charles J Kinzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:07
CPC Classifications
C; C01; C01G; C01G25/00; C09; C09C; C09C1/00; C09C1/0009; C09C1/0012; C01P; C01P2006/00; C01P2006/60
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) | 1930-02-21 | 1930-08-23 | 1931-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-02-21 | 1934-08-23 | 1935-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-02-21 | 1938-08-23 | 1939-02-22 | $7700.00 | Window Closed / Lapsed |