US3605243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scrap recovery process
Assignee: Ford Motor Co
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Filing: 1969-03-18
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Granted: 1971-09-20
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Expires: 1989-03-18
Abstract
Abstract THIS DISCLOSURE IS DIRECTED TO A PROCESS FOR THE SEPARATION OF ZINC AND ALUMINUM BASE SCRAP FROM THE USAUL IMPURITIES ACCOMPANYING SUCH SCRAP. SUCH IMPURITIES ARE USUALLY FERROUS METAL AND COPPER BASE METALS SUCH AS BRASS AND BRONZE. ALUMINUM AND ZINC SCRAP IS PREFERABLY FIRST GROUND AND SO REDUCED IN SIZE AND THEN FLATTENED BY PASSAGE THROUGH STURDY ROLLS TO REDUCE IT IN THICKNESS AND SIMULTANEOUSLY EXPEDITE ITS SEPARATION FROM FERROUS AND COPPER BASE IMPURITIES.
Inventors
- 👤 Thomas H Oster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:54
CPC Classifications
B; B03; B03B; B03B9/00; B03B9/06; B03B9/061; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49751; Y10T29/49755
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |