Patent US2662682A successfully refreshed from Google Patents.
US2887178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating pneumatically conveyed material
Assignee: Svenska Flaktfabriken AB
•
Filing: 1957-09-30
•
Granted: 1959-05-19
•
Expires: 1977-09-30
Abstract
No abstract record available.
Inventors
- 👤 Larsson Gustaf
- 👤 Wallin Sven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:29
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/60; B04; B04C; B04C11/00; B04C5/00; B04C5/08; B04C5/103; B04C5/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |