US2834474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strainer apparatus
Assignee: Repola Oy
•
Filing: 1954-05-12
•
Granted: 1958-05-13
•
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 00:18
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE251932C
Cited
US485983A
Cited
US1012974A
Cited
US1212978A
Cited
US1446448A
Cited
US1826361A
Cited
GB397471A
Cited
US2268788A
Cited
US2379754A
Cited
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 |