US2561062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure casting apparatus
Assignee: Individual
•
Filing: 1948-09-27
•
Granted: 1951-07-17
•
Expires: 1968-09-27
Abstract
No abstract record available.
Inventors
- 👤 Walter R Ling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:24
CPC Classifications
B; B22; B22D; B22D18/00; B22D18/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US271717A
Cited
US314173A
Cited
US464441A
Cited
US636464A
Cited
US1920854A
Cited
US2070821A
Cited
US2196432A
Cited
US2313517A
Cited
US2406333A
Cited
US2431879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |