US3214657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid self-healing capacitor
Assignee: EIDP Inc
•
Filing: 1963-01-17
•
Granted: 1965-10-26
•
Expires: 1983-01-17
Abstract
No abstract record available.
Inventors
- 👤 Davis William Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:57
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/005; H01G4/015
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
AN ELECTRICAL CAPACITOR COMPRISING: A CONVOLUTELY WOUND, LAMINAR STRUCTURE COMPRISING A BASE SHEET OF A POLYESTER FILM HAVING DEPOSITED ON BOTH SIDES THEREOF A THIN LAYER OF METAL; MEANS TO COUPLE SAID METAL LAYERS TO AN EXTERNAL ELECTRICAL CIRCUIT AND A COATING ON AT LEAST ONE METAL LAYER OF A HEAT SEALABLE MATERIAL HAVING A MELTING POINT LESS THAN THE MELTING POINT OF SAID BASE SHEET, SAID HEAT-SEALABLE COATING OVERLYING AND FUSED TO THE NEXT ADJACENT CONVOLUTE LAYER WHEREBY A SOLID, SELF-HEALING STRUCTURE FREE FROM AIR ENTRAPMENT IF FORMED.
Claim 2
Dependent Claim
89 words
AN ELECTRICAL CAPACITOR COMPRISING: A CONVOLUTELY WOUND, LAMINAR STRUCTURE COMPRISING A BASE SHEET OF A POLYESTER FILM HAVING DEPOSITED ON BOTH SIDES THEREOF A THIN LAYER OF METAL; MEANS TO COUPLE SAID METAL LAYERS TO AN EXTERNAL ELECTRICAL CIRCUIT AND A COATING ON AT LEAST ONE METAL LAYER OF A HEAT SEALABLE MATERIAL HAVING A MELTING POINT LESS THAN THE MELTING POINT OF SAID BASE SHEET, SAID HEAT-SEALABLE COATING OVERLYING AND FUSED TO THE NEXT ADJACENT CONVOLUTE LAYER WHEREBY A SOLID, SELF-HEALING STRUCTURE FREE FROM AIR ENTRAPMENT IF FORMED.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |