US3619907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chip dryer device
Assignee: KLEFSTAD ENGINEERING Co Inc
•
Filing: 1970-06-08
•
Granted: 1971-11-16
•
Expires: 1990-06-08
Abstract
Abstract A SYSTEM FOR CLEANING AND DRYING METAL CHIPS HAVING AN AIR FLOW MOVING IN AN OPPOSED RELATIONSHIP WITH RESPECT TO THE MOVEMENT OF THE METAL CHIPS. A SPIRAL AUGER CONVEYS THE METAL CHIPS FROM AN INPUT END TO AN OUTPUT END.
Inventors
- 👤 William C Kallas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:15
CPC Classifications
F; F26; F26B; F26B11/00; F26B11/02; F26B11/04; F26B11/0463; F26B11/0477; F26B11/0481
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |