US2593829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical capacitor and foil therefor
Assignee: Bayer AG
•
Filing: 1949-05-24
•
Granted: 1952-04-22
•
Expires: 1969-05-24
Abstract
No abstract record available.
Inventors
- 👤 Arledter Hanns
- 👤 Engelhardt Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:45
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/14; H01G4/18; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/266; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2936; Y10T428/294; Y10T428/2942; Y10T428/2944; Y10T428/31504; Y10T428/31551; Y10T428/31605; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
93 words
A CAPACITOR COMPRISING A METAL CORE HAVING AT LEAST ONE FOIL WOUND ABOUT IT, SAID FOIL CONSISTING OF A METAL FOIL ELEMENT COATED AT LEAST ON ONE SIDE WITH AT LEAST ONE LAYER OF DIELECTRIC PLASTIC FIRMLY ADHERING THERETO CONSISTING OF THE REACTION PRODUCT OF A POLYISOCYANATE AND AN ORGANIC POLYHYDROXY COMPOUND, A SECOND METALLIC LAYER BEING SUPERIMPOSED ON AND FIRMLY ADHERING TO SAID PLASTIC LAYER, SAID METAL FOIL ELEMENT BEING POSITIONED IN ELECTRICAL CONTACT WITH SAID METAL CORE, AND AT LEAST ONE ELECTRODE POSITIONED IN ELECTRICAL CONTACT WITH SAID SECOND METALLIC LAYER.
References Cited (Backward Citations)
US1890313A
Cited
US2430479A
Cited
US2449613A
Cited
US2439369A
Cited
US2436222A
Cited
US2497066A
Cited
US2424853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |