US3477812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing metal fluoride single crystals
Assignee: Dow Chemical Co
•
Filing: 1967-04-27
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Granted: 1969-11-11
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Expires: 1987-04-27
Abstract
No abstract record available.
Inventors
- 👤 James O Huml
- 👤 Gilbert S Layne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:01
CPC Classifications
C; C30; C30B; C30B25/00; C30B25/005; C01; C01B; C01B21/00; C01B21/06; C01B21/072; C01F; C01F5/00; C01F5/26; C01F5/28; C01G; C01G1/00; C01G1/06; C30B29/00; C30B29/10; C30B29/12; C30B29/40; C30B29/403; C01P; C01P2004/00; C01P2004/10; C01P2004/51; C01P2004/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3305351A
Cited
US3397056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |