US1966274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for filtering fluids
Assignee: HAROLD GOLDMAN J
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Filing: 1934-01-17
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Granted: 1934-07-10
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Expires: 1954-01-17
Abstract
No abstract record available.
Inventors
- 👤 Meurice T Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:13
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/01; B01D29/05; B01D29/055; B01D29/50; B01D29/56; B01D29/58; B01D2201/00; B01D2201/04; B01D2201/0407
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) | 1937-07-09 | 1938-01-08 | 1938-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-07-09 | 1942-01-08 | 1942-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-07-09 | 1946-01-08 | 1946-07-10 | $7700.00 | Window Closed / Lapsed |