Patent US2468672A successfully refreshed from Google Patents.
US2468672A
Expired / Lapsed
US
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Core blower
Assignee: Western Hardware & Specialty M
•
Filing: 1946-05-03
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Granted: 1949-04-26
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Expires: 1966-05-03
Abstract
No abstract record available.
Inventors
- 👤 Julius S Judell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:34
CPC Classifications
B; B22; B22C; B22C15/00; B22C15/23; B22C15/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US808367A
Cited
US823530A
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US1552692A
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US1703708A
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US1741503A
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US1994028A
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US1868797A
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DE543832C
Cited
US2049732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |