US2649693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically driven working machine for die-casting, injection molding, and the like
Assignee: Hahn and Kolb GmbH and Co
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Filing: 1949-09-28
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Granted: 1953-08-25
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Expires: 1969-09-28
Abstract
No abstract record available.
Inventors
- 👤 Wilibald A Venus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:56
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/53; B29C45/531; B22; B22D; B22D17/00; B22D17/20; B22D17/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |