US3234628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor manufacture
Assignee: Cornell Dubilier Electronics Inc
•
Filing: 1962-11-26
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Granted: 1966-02-15
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Expires: 1982-11-26
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Frekko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:02
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/0029; H01G13/00; H01G13/006; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE METHOD OF MANUFACTURING ALUMINUM ELECTROLYTIC CAPACITORS, INCLUDING THE STEPS OF ANODICALLY FORMING A CONTINUOUS STRIP OF ALUMINUM FOIL, SQUEEZING A SERIES OF ALUMINUM TERMINALS AGAINST SAID FORMED FOIL AT SPACED LOCATIONS WITH SUFFICIENT PRESSURE TO EFFECT ABOUT 50% REDUCTION IN THICKNESS OF BOTH THE FOIL AND THE TERMINALS IN THE REGION OF PRESSURE APPLICATION WHILE HEATING THE SQUEEZED MATERIAL AT A TEMPERATURE IN THE RANGE OF 290* F. TO 350*F., AND SUBDIVIDING THE STRIP INTO ELECTRODES EACH HAVING A TERMINAL.
Claim 2
Independent Claim
81 words
THE METHOD OF MANUFACTURING ALUMINUM ELECTROLYTIC CAPACITORS, INCLUDING THE STEPS OF ANODICALLY FORMING A CONTINUOUS STRIP OF ALUMINUM FOIL, SQUEEZING A SERIES OF ALUMINUM TERMINALS AGAINST SAID FORMED FOIL AT SPACED LOCATIONS WITH SUFFICIENT PRESSURE TO EFFECT ABOUT 50% REDUCTION IN THICKNESS OF BOTH THE FOIL AND THE TERMINALS IN THE REGION OF PRESSURE APPLICATION WHILE HEATING THE SQUEEZED MATERIAL AT A TEMPERATURE IN THE RANGE OF 290* F. TO 350*F., AND SUBDIVIDING THE STRIP INTO ELECTRODES EACH HAVING A TERMINAL.
References Cited (Backward Citations)
US2707826A
Cited
US3100933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |