US2632032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cell vent
Assignee: Olin Industries Inc
•
Filing: 1949-07-23
•
Granted: 1953-03-17
•
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
2026-10-27 03:52
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US406223A
Cited
US1549851A
Cited
US686642A
Cited
GB190305081A
Cited
US1184135A
Cited
US1196611A
Cited
US1484779A
Cited
US1650319A
Cited
US1865764A
Cited
US2074506A
Cited
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 |