Patent US2880765A successfully refreshed from Google Patents.
US2880765A
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US
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Apparatus for introducing depolarizer into dry cell cans
Assignee: Olin Corp
•
Filing: 1953-12-18
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Granted: 1959-04-07
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Expires: 1973-12-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Edwin Pugsley
- 👤 Otto K Reinhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:25
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US110155A
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US744644A
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US925300A
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US990823A
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US1329965A
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US2136224A
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US2517107A
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US2553684A
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US2612016A
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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) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |