US3671079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for handling material
Assignee: Ma Tran Corp
•
Filing: 1970-04-16
•
Granted: 1972-06-20
•
Expires: 1990-04-16
Abstract
Abstract A FLUIDIZER RECEIVES MATERIAL FROM A SOURCE. AFTER THE FLUIDIZER IS FILLED WITH MATERIAL, THEREIN IS AERATED, THEN, THE MATERIAL IS CONVEYED TO A STORAGE TRANK BY PRESSURIZED AIR. THE MATERIAL IN THE LOWER PORTION OF THE STORAGE TANK IS AERATED WHENEVER MATERIAL IS TO BE DELIVERED FROM THE STORAGE TANK.
Inventors
- 👤 Walter D Huffaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:45
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/04; B65G53/24; B65G53/06; B65G53/10; B65G53/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |