US2760641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtering apparatus
Assignee: Individual
•
Filing: 1951-09-25
•
Granted: 1956-08-28
•
Expires: 1971-09-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Carl P Mies
- 👤 Aloysius C Kracklauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:51
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/02; A; A47; A47J; A47J37/00; A47J37/12; A47J37/1223; B01D29/00; B01D29/39; B01D29/41; B01D37/00; B01D37/02; Y; Y10; Y10S; Y10S210/00; Y10S210/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US361474A
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US1506652A
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US1595344A
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US1945824A
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US1940208A
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FR780398A
Cited
US2088199A
Cited
US2328891A
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US2424211A
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US2564174A
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US2615574A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |