Patent US992047A successfully refreshed from Google Patents.
Patent US2493049A successfully refreshed from Google Patents.
US2493049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ore scrubbing apparatus
Assignee: Vanadium Corp of America
•
Filing: 1945-07-02
•
Granted: 1950-01-03
•
Expires: 1965-07-02
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Weinig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:21
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1645847A
Cited
US1995549A
Cited
US237839A
Cited
US255862A
Cited
US390125A
Cited
US529761A
Cited
US6644A
Cited
US231222A
Cited
US764993A
Cited
US792395A
Cited
US1748138A
Cited
US1835973A
Cited
US2173975A
Cited
US2156320A
Cited
US2209344A
Cited
US2373221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |