US3306781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Depolarizer mixture and molded bodies
Assignee: VARTA Pertrix Union GmbH
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Filing: 1964-06-19
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Granted: 1967-02-28
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Expires: 1984-06-19
Abstract
No abstract record available.
Inventors
- 👤 Siller Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:30
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/08; H01M4/00; H01M4/02; H01M4/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
DEPOLARIZER MIXTURE FOR PRIMARY ELEMENTS COMPRISING MANGANESE DIOXIDE, CARBON BLACK, AND A BINDING AGENT SELECTED FROM THE GROUP CONSISTING OF POLYISOBUTYLENE AND RUBBER, THE MANGANESE DIOXIDE PARTICLES IN SAID MIXTURE BEING BOUND BY SAID BINDING AGENT, AT LEAST THE PREDOMINANT PART OF SAID CARBON BLACK BEING PRESENT IN SAID MIXTURE IN THE FREE STATE AND NOT BOUND BY SAID BINDING AGENT.
Claim 2
Dependent Claim
61 words
DEPOLARIZER MIXTURE FOR PRIMARY ELEMENTS COMPRISING MANGANESE DIOXIDE, CARBON BLACK, AND A BINDING AGENT SELECTED FROM THE GROUP CONSISTING OF POLYISOBUTYLENE AND RUBBER, THE MANGANESE DIOXIDE PARTICLES IN SAID MIXTURE BEING BOUND BY SAID BINDING AGENT, AT LEAST THE PREDOMINANT PART OF SAID CARBON BLACK BEING PRESENT IN SAID MIXTURE IN THE FREE STATE AND NOT BOUND BY SAID BINDING AGENT.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |