Patent US2899480A successfully refreshed from Google Patents.
US2899480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Other
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
•
Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:23
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/26; H01M4/28; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD OF MANUFACTURING CADMIUM PLATES FROM SINTERED NICKEL PLAQUES COMPRISING IMPREGNATING THE PLAQUES IN A CADMIUM SALT SOLUTION, CATHODIC POLARIZATION OF THE SOAKED PLATES IN ALKALI SOLUTION, WASHING AND DRYING THE PLATES CHARACTERIZED IN THAT POLYETHYLENE GLYCOL IS ADDED TO SAID CADMIUM SALT SOLUTION SAID POLYETHYLENE GLYCOL BEING USED IN A CONCENTRATION OF ABOUT 1 G. PER LITER OF CADMIUM SALT SOLUTION.
Claim 2
Independent Claim
63 words
A METHOD OF MANUFACTURING CADMIUM PLATES FROM SINTERED NICKEL PLAQUES COMPRISING IMPREGNATING THE PLAQUES IN A CADMIUM SALT SOLUTION, CATHODIC POLARIZATION OF THE SOAKED PLATES IN ALKALI SOLUTION, WASHING AND DRYING THE PLATES CHARACTERIZED IN THAT POLYETHYLENE GLYCOL IS ADDED TO SAID CADMIUM SALT SOLUTION SAID POLYETHYLENE GLYCOL BEING USED IN A CONCENTRATION OF ABOUT 1 G. PER LITER OF CADMIUM SALT SOLUTION.
References Cited (Backward Citations)
US2519399A
Cited
US2870234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |