Patent US3341285A successfully refreshed from Google Patents.
US3341285A
Expired / Lapsed
US
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Process for preparing alumina wool
Assignee: Horizons Inc
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Filing: 1964-07-16
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Granted: 1967-09-12
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Expires: 1984-07-16
Abstract
No abstract record available.
Inventors
- 👤 Robert H Kelsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:02
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/62227; C04B35/62231; C04B35/62236; C01; C01F; C01F7/00; C01F7/02; C01F7/42; C30; C30B; C30B25/00; C30B25/005; C30B29/00; C30B29/10; C30B29/16; C30B29/20; C01P; C01P2004/00; C01P2004/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |