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US2440384A
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Self-cleaning strainer
Assignee: Individual
•
Filing: 1944-07-20
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Granted: 1948-04-27
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Expires: 1964-07-20
Abstract
No abstract record available.
Inventors
- 👤 Kurtiss P Schenke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:45
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/62; B01D29/64; B01D29/6469; B01D29/6476; B01D29/44; B01D29/46; B01D29/50; B01D29/52; B01D2201/00; B01D2201/20; B01D2201/204; B01D2201/208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE215550C
Cited
US1741444A
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US1757153A
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US1754728A
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US1852873A
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US1987597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |