US2565868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inspection unit for battery separator plates
Assignee: Individual
•
Filing: 1947-10-27
•
Granted: 1951-08-28
•
Expires: 1967-10-27
Abstract
No abstract record available.
Inventors
- 👤 Ralph C Mann
- 👤 William H Ashcraft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:06
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/403; H01M50/409; H01M50/411; H01M50/429; H01M50/4295; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53087; Y10T29/5313; Y10T29/53135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US200307A
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US877490A
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US1792986A
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US1965819A
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US1948087A
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US2228887A
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US2282245A
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US2254394A
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US2373082A
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US2406489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |