Patent US802489A successfully refreshed from Google Patents.
Patent US2071906A successfully refreshed from Google Patents.
US2071906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ingot mold
Assignee: Bethlehem Steel Corp
•
Filing: 1935-02-07
•
Granted: 1937-02-23
•
Expires: 1955-02-07
Abstract
No abstract record available.
Inventors
- 👤 Richard H Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:30
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-02-23 | 1940-08-24 | 1941-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-23 | 1944-08-24 | 1945-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-23 | 1948-08-24 | 1949-02-23 | $7700.00 | Window Closed / Lapsed |