US3207633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary alkaline cell
Assignee: Exide Technologies LLC
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Filing: 1962-07-18
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Granted: 1965-09-21
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Expires: 1982-07-18
Abstract
No abstract record available.
Inventors
- 👤 Theodore H Meltzer
- 👤 Thomas R Krebs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:52
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/24; H01M6/00; H01M6/04; H01M4/00; H01M4/02; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
99 words
IN A PRIMARY ALKALINE CELL, AN ANODE-ELECTROLYTE MEMBER CONSISTING ESSENTIALLY OF A FINELY DIVIDED BATTERY ACTIVE MATERIAL PERMANENTLY SUSPENDED IN A FREE FLOWING LIQUID ALKALINE ELECTROLYTE HAVING DISSOLVED THEREIN A SUSPENDING AGENT SELECTED FROM THE GROUP CONSISTING OF POLYACRYLIC ACIDS, POLYMETHACRYLIC ACIDS, STYRENE-MALEIC ACID COPOLYMERS, ETHYLENE-MALEIC ACID COPOLYMERS, VINYL ESTER COPOLYMERS WITH MALLEIC ACID, VINYL ESTER COPOLYMERS WITH CROTONIC ACID, VINYL ETHER COPOLYMERS WITH MALEIC ACID AND VINYL ETHER COPOLYMERS WITH CROTONIC ACID, SAID SUSPENDING AGENT BEING PRESENT IN SUFFICIENT CONCENTRATION TO IMPART TO SAID ELECTROLYTE A MINIMUM YIELD VALUE OF 9 AS CALCULATED IN ACCORDANCE WITH THE FORMULA
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |