Patent US1700713A successfully refreshed from Google Patents.
US1700713A
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Method of and apparatus for treating molding sand
Assignee: Buckeye Steel Castings Co
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Filing: 1927-02-19
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Granted: 1929-01-29
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Expires: 1947-02-19
Abstract
No abstract record available.
Inventors
- 👤 Edward W Campion
- 👤 Arthur H Dierker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:18
CPC Classifications
B; B22; B22C; B22C5/00; B22C5/18; Y; Y10; Y10S; Y10S241/00; Y10S241/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1932-01-29 | 1932-07-30 | 1933-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-01-29 | 1936-07-30 | 1937-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-01-29 | 1940-07-30 | 1941-01-29 | $7700.00 | Window Closed / Lapsed |