US2572037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for pouring castings
Assignee: Monarch Aluminum Mfg Co
•
Filing: 1948-02-18
•
Granted: 1951-10-23
•
Expires: 1968-02-18
Abstract
No abstract record available.
Inventors
- 👤 John H Keating
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:33
CPC Classifications
B; B22; B22D; B22D35/00; B22D35/04; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/479; Y10T137/4857
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1954-10-22 | 1955-04-23 | 1955-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-22 | 1959-04-23 | 1959-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-22 | 1963-04-23 | 1963-10-23 | $7700.00 | Window Closed / Lapsed |