Patent US2632032A successfully refreshed from Google Patents.
US2632032A
Expired / Lapsed
US
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Air cell vent
Assignee: Olin Industries Inc
•
Filing: 1949-07-23
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Granted: 1953-03-17
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Expires: 1969-07-23
Abstract
No abstract record available.
Inventors
- 👤 Gunnar A F Winckler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:02
CPC Classifications
H; H01; H01M; H01M12/00; H01M12/04; H01M12/06; H01M50/00; H01M50/30; H01M50/317; H01M50/325; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US406223A
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US1549851A
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US686642A
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GB190305081A
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US1184135A
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US1196611A
Cited
US1484779A
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US1650319A
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US1865764A
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US2074506A
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US2124648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |