US2902160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation apparatus
Assignee: American Machine and Metals Inc
•
Filing: 1956-04-23
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Granted: 1959-09-01
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Expires: 1976-04-23
Abstract
No abstract record available.
Inventors
- 👤 Kenneth A Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:55
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/20; B01D25/00; B01D25/22; B01D25/26; B01D25/32; B01D25/34; B01D25/346; B01D37/00; B01D37/02
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) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |