Patent US3482821A successfully refreshed from Google Patents.
US3482821A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Utility farm vehicle for mixing and discharging bulk material
Assignee: EVERETT C BLACKWOOD
•
Filing: 1968-03-25
•
Granted: 1969-12-09
•
Expires: 1988-03-25
Abstract
No abstract record available.
Inventors
- 👤 Everett C Blackwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:51
CPC Classifications
B; B01; B01F; B01F33/00; B01F33/50; B01F33/502; B01F27/00; B01F27/05; B01F27/11; B01F27/114; B01F27/23; B01F27/232; B01F27/2322; B01F27/60
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US208169A
Cited
US402393A
Cited
US3273734A
Cited
US2576177A
Cited
US3194639A
Cited
US3170675A
Cited
US3393898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |