US2958104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum die casting process and apparatus
Assignee: Individual
•
Filing: 1958-04-21
•
Granted: 1960-11-01
•
Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 Charles W Ohse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:51
CPC Classifications
B; B22; B22D; B22D17/00; B22D17/14; Y; Y10; Y10S; Y10S164/00; Y10S164/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2904861A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |