US3329753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making open-ended cathodes
Assignee: Union Carbide Corp
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Filing: 1965-03-24
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Granted: 1967-07-04
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Expires: 1985-03-24
Abstract
No abstract record available.
Inventors
- 👤 Albert G Saurwein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:26
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/08; Y; Y10; Y10S; Y10S425/00; Y10S425/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A METHOD OF MAKING AN OPEN-ENEDED CATHODE FOR USE IN A DRY CELL COMPRISING, DEPOSITING AN EXCESS OF CATHODIC MIX IN A STATIONARY MOLD OPEN AT OPPOSITE ENDS SO AS TO FILL SAID MOLD, DRIVING A FIRST RAM FROM ONE END OF SAID MOLD THROUGH ABOUT TWO-THIRDS OF THE LONGITUDINAL CNETRAL PORTION OF SAID MOLD SO THAT AN ANNULAR-SHAPED CATHODE IS INITIALLY FORMED BETWEEN THE WALLS OF SAID MOLD AND SAID RAM, DRIVING A SECOND RAM OF THE SAME DIAMETER AND IN AXIAL ALIGNMENT WITH SAID FIRST RAM FROM THE OPPOSITE END OF SAID MOLD WHEREBY SAID CATHODIC MIX
Claim 2
Independent Claim
99 words
A METHOD OF MAKING AN OPEN-ENEDED CATHODE FOR USE IN A DRY CELL COMPRISING, DEPOSITING AN EXCESS OF CATHODIC MIX IN A STATIONARY MOLD OPEN AT OPPOSITE ENDS SO AS TO FILL SAID MOLD, DRIVING A FIRST RAM FROM ONE END OF SAID MOLD THROUGH ABOUT TWO-THIRDS OF THE LONGITUDINAL CNETRAL PORTION OF SAID MOLD SO THAT AN ANNULAR-SHAPED CATHODE IS INITIALLY FORMED BETWEEN THE WALLS OF SAID MOLD AND SAID RAM, DRIVING A SECOND RAM OF THE SAME DIAMETER AND IN AXIAL ALIGNMENT WITH SAID FIRST RAM FROM THE OPPOSITE END OF SAID MOLD WHEREBY SAID CATHODIC MIX
References Cited (Backward Citations)
US2091739A
Cited
US2122960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |