US2834926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tantalum electrolytic capacitor with iron chloride depolarizer
Assignee: Duracell Inc USA
•
Filing: 1954-11-16
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Granted: 1958-05-13
•
Expires: 1974-11-16
Abstract
No abstract record available.
Inventors
- 👤 James M Booe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:26
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
AN ELECTROLYTIC CAPACITOR COMPRISING AN ANODE OF TANTALUM, A CATHODE SELECTED FROM THE GROUP SILVER AND GOLD, AN ELECTROLYTE SELECTED FROM THE GROUP CONSISTING OF AQUEOUS SOLUTIONS OF ALKALI METAL CHLORIDES AND OF HYDROCHLORIC ACID, AND A DEPOLARIZER OF A CHLORIDE OF IRON.
Claim 2
Dependent Claim
43 words
AN ELECTROLYTIC CAPACITOR COMPRISING AN ANODE OF TANTALUM, A CATHODE SELECTED FROM THE GROUP SILVER AND GOLD, AN ELECTROLYTE SELECTED FROM THE GROUP CONSISTING OF AQUEOUS SOLUTIONS OF ALKALI METAL CHLORIDES AND OF HYDROCHLORIC ACID, AND A DEPOLARIZER OF A CHLORIDE OF IRON.
References Cited (Backward Citations)
US2368688A
Cited
US2617863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |