Patent US3189284A successfully refreshed from Google Patents.
Patent US2968846A successfully refreshed from Google Patents.
US2968846A
Expired / Lapsed
US
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Foundry molding machine
Assignee: Osborn Manufacturing Corp
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Filing: 1958-03-05
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Granted: 1961-01-24
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Expires: 1978-03-05
Abstract
No abstract record available.
Inventors
- 👤 Leon F Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:13
CPC Classifications
B; B22; B22C; B22C15/00; B22C15/10; B22C15/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2857636A
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US989578A
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US1537860A
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DE527222C
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US2061280A
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US2328769A
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US2698976A
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US2812560A
Cited
US2835004A
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US2864136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |