Patent US2498515A successfully refreshed from Google Patents.
US2498515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for feeding granular material to a mill and the like
Assignee: General Electric Co
•
Filing: 1944-10-14
•
Granted: 1950-02-21
•
Expires: 1964-10-14
Abstract
No abstract record available.
Inventors
- 👤 Ernest A Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:38
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/286; B02C2013/2869
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US479982A
Cited
US694974A
Cited
US829792A
Cited
US1200514A
Cited
US1673155A
Cited
US1794972A
Cited
US2045211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |