US2471044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic separator having means for wiping and scraping the carrier disk
Assignee: Individual
•
Filing: 1945-10-26
•
Granted: 1949-05-24
•
Expires: 1965-10-26
Abstract
No abstract record available.
Inventors
- 👤 Scrivener Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:31
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/10; Y; Y10; Y10S; Y10S29/00; Y10S29/095; Y10S29/098
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) | 1952-05-23 | 1952-11-22 | 1953-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-23 | 1956-11-22 | 1957-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-23 | 1960-11-22 | 1961-05-24 | $7700.00 | Window Closed / Lapsed |