US3029370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic capacitors
Assignee: International Standard Electric Corp
•
Filing: 1958-08-04
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Granted: 1962-04-10
•
Expires: 1978-08-04
Abstract
No abstract record available.
Inventors
- 👤 Hill Ronald Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:04
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/0029; H01G9/0036; Y; Y10; Y10T; Y10T29/00; Y10T29/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A SOLID ELECTROLYTIC CAPACITOR WHICH INCLUDES AN ANODE UPON A SURFACE OF WHICH THERE IS AN ANODICALLY FORMED DIELECTRIC FILM, A SEMICONDUCTIVE LAYER CONTAINING MANGANESE DIOXIDE AND BETWEEN .3% AND 1.5% BY WEIGHT OF THALLIC OXIDE UPON THE FORMED FILM, AND AN ELECTRICALLY CONDUCTING CATHODE COATING UPON THE SAID LAYER.
Claim 2
Dependent Claim
50 words
A SOLID ELECTROLYTIC CAPACITOR WHICH INCLUDES AN ANODE UPON A SURFACE OF WHICH THERE IS AN ANODICALLY FORMED DIELECTRIC FILM, A SEMICONDUCTIVE LAYER CONTAINING MANGANESE DIOXIDE AND BETWEEN .3% AND 1.5% BY WEIGHT OF THALLIC OXIDE UPON THE FORMED FILM, AND AN ELECTRICALLY CONDUCTING CATHODE COATING UPON THE SAID LAYER.
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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) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |