US2676370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die casting machine with automatic ladle
Assignee: NL Industries Inc
•
Filing: 1950-05-19
•
Granted: 1954-04-27
•
Expires: 1970-05-19
Abstract
No abstract record available.
Inventors
- 👤 Herman H Doehler
- 👤 Clyde A Wilcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:48
CPC Classifications
B; B22; B22D; B22D39/00; B22D39/02; B22D39/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1458685A
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US1080196A
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US1265333A
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US1433278A
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US1846087A
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US1866191A
Cited
US2064734A
Cited
US2293087A
Cited
US2256957A
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US2363759A
Cited
US2519739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |