US2785448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the automatic expulsion of air from the die-cavity of hot and cold chamber die-casting machines
Assignee: Individual
•
Filing: 1955-06-14
•
Granted: 1957-03-19
•
Expires: 1975-06-14
Abstract
No abstract record available.
Inventors
- 👤 Hodler Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:54
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)
US1912981A
Cited
US2079936A
Cited
US2243835A
Cited
DE848689C
Cited
US2484907A
Cited
US2634468A
Cited
US2668985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-18 | 1960-09-17 | 1961-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-18 | 1964-09-17 | 1965-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-18 | 1968-09-17 | 1969-03-19 | $7700.00 | Window Closed / Lapsed |