US2974379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die casting machines
Assignee: Die Casting Machine Tools Ltd
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Filing: 1957-07-26
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Granted: 1961-03-14
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Expires: 1977-07-26
Abstract
No abstract record available.
Inventors
- 👤 Mills Aubrey Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:36
CPC Classifications
B; B22; B22D; B22D17/00; B22D17/20; B22D17/2007; Y; Y10; Y10S; Y10S425/00; Y10S425/115; Y10S425/116
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) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |