US3170820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making duplex electrodes for high rate primary batteries
Assignee: Union Carbide Corp
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Filing: 1963-03-19
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Granted: 1965-02-23
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Expires: 1983-03-19
Abstract
No abstract record available.
Inventors
- 👤 George R Dreugler
- 👤 Milton B Clark
- 👤 Robert E Stark
- 👤 Theodore R Beatty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:33
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/06; H01M4/08; H01M6/00; H01M6/42; H01M6/46; H01M6/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A METHOD OF FACRICATING DUPLEX ELECTRODES FOR USE IN PRIMARY BATTERIES, COMPRISING SECURING TWO THIN EXPANDED MATALLIC GRIDS TO ONE FACE OF A SUBSTANTIALLY RECTANGULAR SHAPED, ELECTRICALLY-CONDUCTIVE, ELECTROCHEMICALLY INERT THIN METALLIC SEPARATOR, COMPRESSING AN ELECTROPOSITIVE OXIDE MATERIAL THROUGH AND ONTO ONE OF SAID GRIDS AND THE PORTION OF SAID FACE OF SAID SEPARATOR BENEATH SAID GRID, COMPRESSING AN ELECTRONEGATIVE MATERIAL THROUGH AND ONTO THE OTHER OF SAID GRIDS AND THE PORTION OF SAID FACE OF SAID SEPARATOR BENEATH SAID GRID, AND FOLDING SAID SEPARATOR MEMBER IN HALF SUCH THAT SAID GRIDS ARE DISPOSED OPPOSITE EACH OTHER IN A BACK TO BACK FASHION.
Claim 2
Independent Claim
102 words
A METHOD OF FACRICATING DUPLEX ELECTRODES FOR USE IN PRIMARY BATTERIES, COMPRISING SECURING TWO THIN EXPANDED MATALLIC GRIDS TO ONE FACE OF A SUBSTANTIALLY RECTANGULAR SHAPED, ELECTRICALLY-CONDUCTIVE, ELECTROCHEMICALLY INERT THIN METALLIC SEPARATOR, COMPRESSING AN ELECTROPOSITIVE OXIDE MATERIAL THROUGH AND ONTO ONE OF SAID GRIDS AND THE PORTION OF SAID FACE OF SAID SEPARATOR BENEATH SAID GRID, COMPRESSING AN ELECTRONEGATIVE MATERIAL THROUGH AND ONTO THE OTHER OF SAID GRIDS AND THE PORTION OF SAID FACE OF SAID SEPARATOR BENEATH SAID GRID, AND FOLDING SAID SEPARATOR MEMBER IN HALF SUCH THAT SAID GRIDS ARE DISPOSED OPPOSITE EACH OTHER IN A BACK TO BACK FASHION.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |