Patent US3275477A successfully refreshed from Google Patents.
US3275477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rod shaped battery with synthetic material casing
Assignee: Individual
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Filing: 1964-01-07
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Granted: 1966-09-27
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Expires: 1984-01-07
Abstract
No abstract record available.
Inventors
- 👤 Schmid-Wildy Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:18
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36; H01M6/38; H01M50/00; H01M50/10; H01M50/102; H01M50/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN COMBINATION, A CLOSED CYLINDRICAL HOUSING OF SYNTHETIC MATERIAL, HAVING AN INTERGRAL PARTITION EXTENDING TRANSVERSELY OF THE HOUSING AND DIVIDING SAID HOUSING INTO AN UPPER TANK CHAMBER AND A LOWER CHAMBER, SAID PARTITION HAVING PASSAGES FOR THE FLOW OF ELECTROLYTE FROM SAID UPPER TANK CHAMBER TO SAID LOWER CHAMBER, AIR INLETS FOR SAID TANK CHAMBER, VALVE MEANS FOR OPENING AND CLOSING SAID PASSAGES AND SAID AIR INLETS, SAID VALVE MEANS COMPRISING A CYLINDER EXTENDING CENTRALLY AND UPWARDLY OF SAID PARTITION TO THE TOP OF SAID HOUSING, A CLOSING PLUG ROTATABLE IN SAID CYLINDER, SAID CYLINDER HAVING BOTTOM OPENINGS COMMUNICATING WITH SAID PASSAGES FOR ELECTROLYTE IN SAID PARTITION, THE TOP PORTION OF SAID CYLINDER HAVING AN AIR INLET OPENING, SAID CLOSING PLUG HAVING BOTTOM RECESSES ALIGNABLE WITH SAID BOTTOM OPENINGS AND SAID PASSAGES, SAID CLOSING PLUG HAVING A TOP RECESS FOR ENTRY OF AIR, ALIGNABLE WITH SAID AIR INLET OPENING, A CARBON BRIQUETTE MOUNTED IN SAID LOWER CHAMBER, A ZINC
Claim 2
Dependent Claim
159 words
IN COMBINATION, A CLOSED CYLINDRICAL HOUSING OF SYNTHETIC MATERIAL, HAVING AN INTERGRAL PARTITION EXTENDING TRANSVERSELY OF THE HOUSING AND DIVIDING SAID HOUSING INTO AN UPPER TANK CHAMBER AND A LOWER CHAMBER, SAID PARTITION HAVING PASSAGES FOR THE FLOW OF ELECTROLYTE FROM SAID UPPER TANK CHAMBER TO SAID LOWER CHAMBER, AIR INLETS FOR SAID TANK CHAMBER, VALVE MEANS FOR OPENING AND CLOSING SAID PASSAGES AND SAID AIR INLETS, SAID VALVE MEANS COMPRISING A CYLINDER EXTENDING CENTRALLY AND UPWARDLY OF SAID PARTITION TO THE TOP OF SAID HOUSING, A CLOSING PLUG ROTATABLE IN SAID CYLINDER, SAID CYLINDER HAVING BOTTOM OPENINGS COMMUNICATING WITH SAID PASSAGES FOR ELECTROLYTE IN SAID PARTITION, THE TOP PORTION OF SAID CYLINDER HAVING AN AIR INLET OPENING, SAID CLOSING PLUG HAVING BOTTOM RECESSES ALIGNABLE WITH SAID BOTTOM OPENINGS AND SAID PASSAGES, SAID CLOSING PLUG HAVING A TOP RECESS FOR ENTRY OF AIR, ALIGNABLE WITH SAID AIR INLET OPENING, A CARBON BRIQUETTE MOUNTED IN SAID LOWER CHAMBER, A ZINC
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |