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US2834474A
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Strainer apparatus
Assignee: Repola Oy
•
Filing: 1954-05-12
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Granted: 1958-05-13
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Expires: 1974-05-12
Abstract
No abstract record available.
Inventors
- 👤 Jalkanen Matti Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:36
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/01; B01D29/03; B01D29/036; B01D29/62; B01D29/64; B01D29/6469; B01D29/6476; B01D29/66; B01D29/668; B01D29/76; B01D29/86; B01D29/88; B01D29/90; B01D33/00; B01D33/15; B01D33/17; B01D33/44; B01D33/46; B01D33/466; B01D33/70; B01D33/72; D; D21; D21D; D21D5/00; D21D5/02; D21D5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US485983A
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US1012974A
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US1212978A
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US1446448A
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US1826361A
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GB397471A
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US2268788A
Cited
US2379754A
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US2310587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |