US2642979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hopper and like containers
Assignee: Foundry Equipment Ltd
•
Filing: 1949-11-30
•
Granted: 1953-06-23
•
Expires: 1969-11-30
Abstract
No abstract record available.
Inventors
- 👤 Beech Austin Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:31
CPC Classifications
B; B22; B22C; B22C5/00; B22C5/14; B65; B65G; B65G65/00; B65G2814/00; B65G2814/03; B65G2814/0301; B65G2814/0314; B65G2814/0319; B65G2814/032
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US754899A
Cited
US935504A
Cited
US1234532A
Cited
US1395089A
Cited
US1554486A
Cited
US1778389A
Cited
US1822530A
Cited
US1922883A
Cited
DE567267C
Cited
FR778238A
Cited
US2116807A
Cited
GB481885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |