US3516478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separation of impurities from metal melts in a filament spinning device
Assignee: Monsanto Co
•
Filing: 1967-12-05
•
Granted: 1970-06-23
•
Expires: 1987-12-05
Abstract
No abstract record available.
Inventors
- 👤 Stanley A Dunn
- 👤 Lawrence F Rakestraw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:00
CPC Classifications
B; B22; B22D; B22D43/00; B22D43/001; B22D43/004; B22D11/00; B22D11/005; B22D11/10; B22D11/11; B22D11/116; B22D11/119; B22D41/00; B22D41/08; C; C03; C03B; C03B37/00; C03B37/08; C03B37/081; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |