US4086399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminar batteries
Assignee: Polaroid Corp
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Filing: 1977-03-30
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Granted: 1978-04-25
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Expires: 1997-03-30
Abstract
Abstract A thin, flat laminar battery having an end cell terminal assembly with a projecting tab substantially shorter than the side of the battery from which the tab projects. The tab is folded around the battery to bring the terminal into substantially the same plane as the opposite end terminal.
Inventors
- 👤 Albert L. Hyland
- 👤 Robert G. Keene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:31
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/42; H01M6/46; H01M6/48; H01M50/00; H01M50/50; H01M50/543; H01M50/562; H01M50/564; H01M50/567
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
An electrode terminal subassembly for use in the manufacture of laminar batteries and comprising a metal terminal sheet laminated to a conductive plastic current collector sheet, said sheets being formed with a generally rectangular body portion adapted to correspond with the major dimensions of the battery and a tab projecting from one side and adapted to be folded around the battery, said tab having a length substantially less than the length of said body portion, said current collector sheet having an electrode patch formed in a central region of the major rectangular portion of the sheet corresponding to the electrode region of the battery.
Claim 2
Dependent Claim
104 words
An electrode terminal subassembly for use in the manufacture of laminar batteries and comprising a metal terminal sheet laminated to a conductive plastic current collector sheet, said sheets being formed with a generally rectangular body portion adapted to correspond with the major dimensions of the battery and a tab projecting from one side and adapted to be folded around the battery, said tab having a length substantially less than the length of said body portion, said current collector sheet having an electrode patch formed in a central region of the major rectangular portion of the sheet corresponding to the electrode region of the battery.
Claim 3
Dependent Claim
94 words
In a flat laminar battery of the kind in which one terminal has a flap that is folded over to permit access thereto on the same side of said battery as the other terminal, said flap being insulated from said other terminal by an insulating sheet comprising paper, the improvement wherein said flap covers only a minor portion of the length of the edge of the battery around which said flap is folded, thereby increasing the opportunity to inspect the battery for leakage and to allow the evaporation of any leakage that may occur.
Claim 4
Dependent Claim
94 words
In a flat laminar battery of the kind in which one terminal has a flap that is folded over to permit access thereto on the same side of said battery as the other terminal, said flap being insulated from said other terminal by an insulating sheet comprising paper, the improvement wherein said flap covers only a minor portion of the length of the edge of the battery around which said flap is folded, thereby increasing the opportunity to inspect the battery for leakage and to allow the evaporation of any leakage that may occur.
References Cited (Backward Citations)
US3734780A
Cited
US4019251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |