US3055649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices for unloading materials from silos and other storage facilities
Assignee: Individual
•
Filing: 1959-11-06
•
Granted: 1962-09-25
•
Expires: 1979-11-06
Abstract
No abstract record available.
Inventors
- 👤 Carl F Dretzke
- 👤 Lorenze R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:49
CPC Classifications
B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/36; B65G65/38; A; A01; A01F; A01F25/00; A01F25/16; A01F25/20; A01F25/2009
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) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |