US3274028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of nickel electrodes
Assignee: AT&T Inc
•
Filing: 1965-01-07
•
Granted: 1966-09-20
•
Expires: 1985-01-07
Abstract
No abstract record available.
Inventors
- 👤 Okinaka Yutaka
- 👤 Dennis R Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:27
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/32; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A METHOD FOR ACTIVATING A FORAMINOUS NICKEL ELECTRODE WHICH COMPRISES IMPREGNATING THE ELECTRODE WITH NICKEL HYDROXIDE, IMMERSING THE ELECTRODE IN A CARBONATE SOLUTION HAVING A CARBONATE NORMALITY IN THE RANGE 1 N TO 8 N AND CYCLING THE ELECTRODE THROUGH COMPLETE DISCHARGE, COMPLETE CHARGE AND OVERCHARGE PRESCRIBED BY THE FOLLOWING:
Claim 2
Independent Claim
50 words
A METHOD FOR ACTIVATING A FORAMINOUS NICKEL ELECTRODE WHICH COMPRISES IMPREGNATING THE ELECTRODE WITH NICKEL HYDROXIDE, IMMERSING THE ELECTRODE IN A CARBONATE SOLUTION HAVING A CARBONATE NORMALITY IN THE RANGE 1 N TO 8 N AND CYCLING THE ELECTRODE THROUGH COMPLETE DISCHARGE, COMPLETE CHARGE AND OVERCHARGE PRESCRIBED BY THE FOLLOWING:
References Cited (Backward Citations)
US2737541A
Cited
US3041388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |