Patent US3303550A successfully refreshed from Google Patents.
US3303550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of fabricating wound electrical capacitors
Assignee: AT&T Inc
•
Filing: 1965-08-23
•
Granted: 1967-02-14
•
Expires: 1985-08-23
Abstract
No abstract record available.
Inventors
- 👤 Jr William S Banzhof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:40
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/32; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A METHOD OF MANUFACTURING AN ELECTRICAL CAPACITOR COMPRISING: DEPOSITING AN ALUMINUM FILM ON ONE SURFACE OF A DIELECTRIC STRIP WHILE IN A PROTECTIVE ATMOSPHERE; DEPOSITING AN ELECTRICALLY CONDUCTIVE METAL TERMINATION PATH ON THE ALUMINUM FILM ADJACENT THE EDGE THEREOF WHILE STILL IN SAID PROTECTIVE ATMOSPHERE; PASSING THE DIELECTRIC STRIP INTO AN OXIDIZING CHAMBER TO OXIDIZE THE ALUMINUM FILM; OVERLAPPING TWO OF SUCH STRIPS SO THAT THE TERMINATION PATH OF EACH STRIP IS EXPOSED AND IS LOCATED AT AN OPPOSITE SIDE EDGE WITH RESPECT TO THE OTHER TERMINATION PATH; CONVOLUTELY WINDING SAID STRIPS INTO A ROLL; POSITIONING A TERMINAL AGAINST EACH END OF SAID ROLL; AND APPLYING SOLDER TO SAID ENDS TO BOND SAID TERMINALS THERETO.
Claim 2
Independent Claim
115 words
A METHOD OF MANUFACTURING AN ELECTRICAL CAPACITOR COMPRISING: DEPOSITING AN ALUMINUM FILM ON ONE SURFACE OF A DIELECTRIC STRIP WHILE IN A PROTECTIVE ATMOSPHERE; DEPOSITING AN ELECTRICALLY CONDUCTIVE METAL TERMINATION PATH ON THE ALUMINUM FILM ADJACENT THE EDGE THEREOF WHILE STILL IN SAID PROTECTIVE ATMOSPHERE; PASSING THE DIELECTRIC STRIP INTO AN OXIDIZING CHAMBER TO OXIDIZE THE ALUMINUM FILM; OVERLAPPING TWO OF SUCH STRIPS SO THAT THE TERMINATION PATH OF EACH STRIP IS EXPOSED AND IS LOCATED AT AN OPPOSITE SIDE EDGE WITH RESPECT TO THE OTHER TERMINATION PATH; CONVOLUTELY WINDING SAID STRIPS INTO A ROLL; POSITIONING A TERMINAL AGAINST EACH END OF SAID ROLL; AND APPLYING SOLDER TO SAID ENDS TO BOND SAID TERMINALS THERETO.
References Cited (Backward Citations)
US2899345A
Cited
US2323020A
Cited
US2305849A
Cited
US2435441A
Cited
US2740732A
Cited
US2797373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |