US3550357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separator having adjustable louvers with cleaning means therefor
Assignee: HENRY D BOWEN
•
Filing: 1968-06-13
•
Granted: 1970-12-29
•
Expires: 1988-06-13
Abstract
No abstract record available.
Inventors
- 👤 Henry D Bowen
- 👤 Charles P Stanley Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:06
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/42; B01D46/44; B01D46/442; B01D46/0002; B01D46/0005; B01D46/0039; B01D46/0041; B01D46/0043; B01D46/10; B01D46/66; B01D46/70; B01D46/72; B01D2273/00; B01D2273/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-28 | 1974-06-29 | 1974-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-28 | 1978-06-29 | 1978-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-28 | 1982-06-29 | 1982-12-29 | $7700.00 | Window Closed / Lapsed |