US2542305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Young Radiator Co
•
Filing: 1948-03-31
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Granted: 1951-02-20
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Expires: 1968-03-31
Abstract
No abstract record available.
Inventors
- 👤 Howard F Brinen
- 👤 Edward J Kothera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:00
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2134735A
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GB451396A
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US2104468A
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US2319216A
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US2413542A
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US2374019A
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US2435652A
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US2405399A
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US2370840A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |