US2423629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material treating mechanism
Assignee: SALEM ENGINEERING Co
•
Filing: 1944-03-15
•
Granted: 1947-07-08
•
Expires: 1964-03-15
Abstract
No abstract record available.
Inventors
- 👤 Harry E Vogeli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:10
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/14; F27B9/20; F27B9/24; F27B9/2407; F27B9/2423; F27B9/30; F27B9/38; F27M; F27M2001/00; F27M2001/15; F27M2001/1539; F27M2001/1547; F27M2001/1556
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US529031A
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US553544A
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US1593351A
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US972167A
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US1467236A
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US1564926A
Cited
US1741981A
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US1695515A
Cited
US1928339A
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US1933404A
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US2198178A
Cited
US2317009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |