US2886432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum foil for electrolytic condensers
Assignee: Aluminium Industrie AG
•
Filing: 1956-11-15
•
Granted: 1959-05-12
•
Expires: 1976-11-15
Abstract
No abstract record available.
Inventors
- 👤 Schmitt Hans
- 👤 Siebel Gustav
- 👤 Altenpohl Dietrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:57
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/04; H01G9/042; H01G9/045; C; C22; C22C; C22C21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
AN ALUMINUM FOIL FOR ELECTROYLTIC CONDENSERS OF A COMPOSITION CONSISTING ESSENTIALLY OF ALUMINUM, ZINC, AND MAGNESIUM, THE ALUMINUM BEING OF A PURITY NOT LESS THAN 99.98%, THE ZINC AND MAGNESIUM BEING PRESENT IN AMOUNTS SUFFICIENT TO IMPROVE THE FINESS OF THE GRAIN STRUCTURE OF THE COMPOSITION, THE AMOUNT OF ZINC NOT EXCEEDING ABOUT 0.005% AND THE AMOUNT OF MAGNESIUM NOT EXCEEDING ABOUT 0.002%.
Claim 2
Dependent Claim
63 words
AN ALUMINUM FOIL FOR ELECTROYLTIC CONDENSERS OF A COMPOSITION CONSISTING ESSENTIALLY OF ALUMINUM, ZINC, AND MAGNESIUM, THE ALUMINUM BEING OF A PURITY NOT LESS THAN 99.98%, THE ZINC AND MAGNESIUM BEING PRESENT IN AMOUNTS SUFFICIENT TO IMPROVE THE FINESS OF THE GRAIN STRUCTURE OF THE COMPOSITION, THE AMOUNT OF ZINC NOT EXCEEDING ABOUT 0.005% AND THE AMOUNT OF MAGNESIUM NOT EXCEEDING ABOUT 0.002%.
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) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |