US3389974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for harvesting crystals
Assignee: Montedison SpA
•
Filing: 1965-06-10
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Granted: 1968-06-25
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Expires: 1985-06-10
Abstract
No abstract record available.
Inventors
- 👤 Barattini Cesare
- 👤 Bortolini Paolo
- 👤 Scarfi Alberto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:36
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/08; C01B35/10; B; B01; B01D; B01D9/00; B01D9/0004; B01D9/0013; B01D9/005; C01B21/00; C01B21/20; C01B21/50; C01B35/06; C01B35/12; C01D; C01D3/00; C01D3/04; C01D3/08; C01D3/22; C01D5/00; C01D5/06; C01D5/10; C01D7/00; C01D7/18; C01D9/00; C01D9/08; C01D9/10; C01D9/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |