US2908951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for use in sand molding
Assignee: Individual
•
Filing: 1957-05-03
•
Granted: 1959-10-20
•
Expires: 1977-05-03
Abstract
No abstract record available.
Inventors
- 👤 William P Melka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:34
CPC Classifications
B; B22; B22C; B22C21/00; Y; Y10; Y10S; Y10S425/00; Y10S425/012; Y10T; Y10T29/00; Y10T29/53; Y10T29/53987
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US695146A
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US1354259A
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US1909410A
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US2177231A
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US2275806A
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US2340972A
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US2424712A
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GB609676A
Cited
US2598621A
Cited
US2815692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |