US2465493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Embossed battery separator
Assignee: Uniroyal Inc
•
Filing: 1944-12-05
•
Granted: 1949-03-29
•
Expires: 1964-12-05
Abstract
No abstract record available.
Inventors
- 👤 Sherman I Strickhouser
- 👤 Edwin C Uhlig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:20
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/463; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S521/00; Y10S521/919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1432938A
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GB470561A
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US2297248A
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US2117382A
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US2329322A
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US2302833A
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US2335757A
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US2382829A
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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) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |