US2810169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slag-free casting method and a device for the application of this method
Assignee: Individual
•
Filing: 1956-04-16
•
Granted: 1957-10-22
•
Expires: 1976-04-16
Abstract
No abstract record available.
Inventors
- 👤 Hofer Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:07
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR1063860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |