Patent US3544369A successfully refreshed from Google Patents.
US3544369A
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US
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Method for the cleaning of metal waste and the recovery of oil therefrom
Assignee: FMC Corp
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Filing: 1967-12-26
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Granted: 1970-12-01
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Expires: 1987-12-26
Abstract
No abstract record available.
Inventors
- 👤 James R Keogh Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:14
CPC Classifications
C; C11; C11B; C11B13/00; B; B08; B08B; B08B3/00; B08B3/04; B08B3/041; B08B3/042; B23; B23Q; B23Q11/00; B23Q11/0042; B23Q11/0057; C23; C23G; C23G1/00; C23G3/00; Y; Y02; Y02P; Y02P70/00; Y02P70/10; Y02W; Y02W30/00; Y02W30/50; Y02W30/74
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) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |