Patent US2159196A successfully refreshed from Google Patents.
US2159196A
Expired / Lapsed
US
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Metal plate filter
Assignee: Motors Liquidation Co
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Filing: 1937-09-25
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Granted: 1939-05-23
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Expires: 1957-09-25
Abstract
No abstract record available.
Inventors
- 👤 Ahraham M Babitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:28
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/005; B01D29/00; B01D29/11; B01D29/114; B01D29/115; B01D29/44; B01D29/46; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/496; Y10T29/49604
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) | 1942-05-22 | 1942-11-21 | 1943-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-22 | 1946-11-21 | 1947-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-22 | 1950-11-21 | 1951-05-23 | $7700.00 | Window Closed / Lapsed |